Z-axis geometry upload fix

* adds clamping of 3D geometries to 2D geometries if uploaded using the map importer
* extends tests for payment-document linkage
* fixes bug in team-admin selection where autocomplete could not be resolved properly

user/autocomplete/team.py

@@ -17,15 +17,15 @@ class TeamAdminAutocomplete(Select2QuerySetView):
     def get_queryset(self):
         if self.request.user.is_anonymous:
             return User.objects.none()
+
         qs = User.objects.filter(
             id__in=self.forwarded.get("members", [])
         ).exclude(
             id__in=self.forwarded.get("admins", [])
         )
         if self.q:
-            # Due to privacy concerns only a full username match will return the proper user entry
             qs = qs.filter(
-                name__icontains=self.q
+                username__icontains=self.q
             )
         qs = qs.order_by(
             "username"