Only return anonymous_url in anonymous context

Otherwise the frontend will treat map as anonymous even with
and owner and display a wrong message creation.

Also, this edit URL does not make sense (and will not work)
when there is an owner.

umap/tests/test_map_views.py

@@ -42,7 +42,6 @@ def test_create(client, user, post_data):
         "share_status": 1,
         "owner": {"id": user.pk, "name": "Joe", "url": "/en/user/Joe/"},
         "editors": [],
-        "anonymous_edit_url": created_map.get_anonymous_edit_url(),
     }
 
 

umap/views.py

@@ -545,9 +545,10 @@ class MapCreate(FormLessEditMixin, PermissionsMixin, CreateView):
         if self.request.user.is_authenticated:
             form.instance.owner = self.request.user
         self.object = form.save()
-        anonymous_url = self.object.get_anonymous_edit_url()
         permissions = self.get_permissions()
         # User does not have the cookie yet.
+        if not self.object.owner:
+            anonymous_url = self.object.get_anonymous_edit_url()
             permissions["anonymous_edit_url"] = anonymous_url
         response = simple_json_response(
             id=self.object.pk,