diff --git a/fixtures/sitetree.json b/fixtures/sitetree.json
index 09cc9fd05d72ed4bcb130813a3366fdbd36b5997..5c3682dc73c593e7e847285c67c7e22c8fa25243 100644
--- a/fixtures/sitetree.json
+++ b/fixtures/sitetree.json
@@ -1,550 +1,597 @@
 [
-    {
-      "model": "sitetree.tree",
-      "pk": 1,
-      "fields": {
-        "title": "main",
-        "alias": "main"
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 1,
-      "fields": {
-        "title": "LINUX.CONF.AU 2019",
-        "hint": "",
-        "url": "/index.html",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 2,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 2,
-      "fields": {
-        "title": "Submissions",
-        "hint": "",
-        "url": "dashboard",
-        "urlaspattern": true,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 10,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 3,
-      "fields": {
-        "title": "django admin",
-        "hint": "",
-        "url": "/admin",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": true,
-        "access_perm_type": 1,
-        "parent": 9,
-        "sort_order": 3,
-        "access_permissions": [
-          52
-        ]
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 4,
-      "fields": {
-        "title": "Ticket Reports",
-        "hint": "",
-        "url": "/tickets/reports/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": true,
-        "access_perm_type": 1,
-        "parent": 9,
-        "sort_order": 4,
-        "access_permissions": [
-          52
-        ]
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 9,
-      "fields": {
-        "title": "Admin",
-        "hint": "",
-        "url": "#",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": true,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 35,
-        "access_permissions": [
-          52,
-          20
-        ]
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 19,
-      "fields": {
-        "title": "Schedule Edit",
-        "hint": "",
-        "url": "/schedule/edit",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": true,
-        "access_perm_type": 1,
-        "parent": 9,
-        "sort_order": 19,
-        "access_permissions": [
-          106,
-          107,
-          108
-        ]
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 20,
-      "fields": {
-        "title": "Home",
-        "hint": "",
-        "url": "/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 3,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 21,
-      "fields": {
-        "title": "About",
-        "hint": "",
-        "url": "/about",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 9,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 22,
-      "fields": {
-        "title": "News",
-        "hint": "",
-        "url": "/news",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 21,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 23,
-      "fields": {
-        "title": "Submissions",
-        "hint": "",
-        "url": "#",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 22,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 24,
-      "fields": {
-        "title": "Tickets and Prices",
-        "hint": "",
-        "url": "/attend",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 23,
-        "sort_order": 24,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 25,
-      "fields": {
-        "title": "Accommodation",
-        "hint": "",
-        "url": "/attend/accommodation",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 23,
-        "sort_order": 25,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 26,
-      "fields": {
-        "title": "Business Case",
-        "hint": "",
-        "url": "/attend/business-case",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 23,
-        "sort_order": 26,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 27,
-      "fields": {
-        "title": "Shirts",
-        "hint": "",
-        "url": "/attend/shirts",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 23,
-        "sort_order": 27,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 28,
-      "fields": {
-        "title": "Code of Conduct",
-        "hint": "",
-        "url": "/attend/code-of-conduct/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 28,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 29,
-      "fields": {
-        "title": "Terms and Conditions",
-        "hint": "",
-        "url": "/attend/terms-and-conditions/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 29,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 30,
-      "fields": {
-        "title": "Volunteer",
-        "hint": "",
-        "url": "/attend/volunteer",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 23,
-        "sort_order": 30,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 31,
-      "fields": {
-        "title": "Programme",
-        "hint": "",
-        "url": "#",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 23,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 32,
-      "fields": {
-        "title": "Overview",
-        "hint": "",
-        "url": "/programme",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 31,
-        "sort_order": 32,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 33,
-      "fields": {
-        "title": "Miniconfs",
-        "hint": "",
-        "url": "/programme/miniconfs.html",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 31,
-        "sort_order": 33,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 34,
-      "fields": {
-        "title": "Proposals",
-        "hint": "",
-        "url": "/proposals/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": true,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": 31,
-        "sort_order": 34,
-        "access_permissions": []
-      }
-    },
-    {
-      "model": "sitetree.treeitem",
-      "pk": 35,
-      "fields": {
-        "title": "Sponsors",
-        "hint": "",
-        "url": "/sponsors/",
-        "urlaspattern": false,
-        "tree": 1,
-        "hidden": false,
-        "alias": null,
-        "description": "",
-        "inmenu": true,
-        "inbreadcrumbs": true,
-        "insitetree": true,
-        "access_loggedin": false,
-        "access_guest": false,
-        "access_restricted": false,
-        "access_perm_type": 1,
-        "parent": null,
-        "sort_order": 31,
-        "access_permissions": []
-      }
-    }
+{
+  "model": "sitetree.tree",
+  "pk": 1,
+  "fields": {
+    "title": "main",
+    "alias": "main"
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 1,
+  "fields": {
+    "title": "LINUX.CONF.AU 2019",
+    "hint": "",
+    "url": "/index.html",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": false,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 2,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 2,
+  "fields": {
+    "title": "Dashboard",
+    "hint": "",
+    "url": "dashboard",
+    "urlaspattern": true,
+    "tree": 1,
+    "hidden": false,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": 37,
+    "sort_order": 22,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 3,
+  "fields": {
+    "title": "django admin",
+    "hint": "",
+    "url": "/admin",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": false,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": true,
+    "access_perm_type": 1,
+    "parent": 9,
+    "sort_order": 3,
+    "access_permissions": [
+      52
     ]
-    
\ No newline at end of file
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 4,
+  "fields": {
+    "title": "Ticket Reports",
+    "hint": "",
+    "url": "/tickets/reports/",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": true,
+    "access_perm_type": 1,
+    "parent": 9,
+    "sort_order": 4,
+    "access_permissions": [
+      52
+    ]
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 9,
+  "fields": {
+    "title": "Admin",
+    "hint": "",
+    "url": "#",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": false,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": true,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 37,
+    "access_permissions": [
+      52,
+      20
+    ]
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 19,
+  "fields": {
+    "title": "Schedule Edit",
+    "hint": "",
+    "url": "/schedule/edit",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": true,
+    "access_perm_type": 1,
+    "parent": 9,
+    "sort_order": 19,
+    "access_permissions": [
+      106,
+      107,
+      108
+    ]
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 20,
+  "fields": {
+    "title": "Home",
+    "hint": "",
+    "url": "/",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": false,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 3,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 21,
+  "fields": {
+    "title": "About",
+    "hint": "",
+    "url": "/about",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 9,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 22,
+  "fields": {
+    "title": "News",
+    "hint": "",
+    "url": "/news",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 10,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 23,
+  "fields": {
+    "title": "Attend",
+    "hint": "",
+    "url": "#",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
+    "access_restricted": false,
+    "access_perm_type": 1,
+    "parent": null,
+    "sort_order": 21,
+    "access_permissions": []
+  }
+},
+{
+  "model": "sitetree.treeitem",
+  "pk": 24,
+  "fields": {
+    "title": "Tickets and Prices",
+    "hint": "",
+    "url": "/attend",
+    "urlaspattern": false,
+    "tree": 1,
+    "hidden": true,
+    "alias": null,
+    "description": "",
+    "inmenu": true,
+    "inbreadcrumbs": true,
+    "insitetree": true,
+    "access_loggedin": false,
+    "access_guest": false,
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