fixes #5387 - Fix error when rendering config contexts when objects have multiple tags assigned (#5447)

netbox/extras/querysets.py

@@ -2,6 +2,7 @@ from collections import OrderedDict
 
 from django.db.models import OuterRef, Subquery, Q
 
+from extras.models.tags import TaggedItem
 from utilities.query_functions import EmptyGroupByJSONBAgg, OrderableJSONBAgg
 from utilities.querysets import RestrictedQuerySet
 
@@ -99,11 +100,25 @@ class ConfigContextModelQuerySet(RestrictedQuerySet):
 
     def _get_config_context_filters(self):
         # Construct the set of Q objects for the specific object types
+        tag_query_filters = {
+            "object_id": OuterRef(OuterRef('pk')),
+            "content_type__app_label": self.model._meta.app_label,
+            "content_type__model": self.model._meta.model_name
+        }
         base_query = Q(
             Q(platforms=OuterRef('platform')) | Q(platforms=None),
             Q(tenant_groups=OuterRef('tenant__group')) | Q(tenant_groups=None),
             Q(tenants=OuterRef('tenant')) | Q(tenants=None),
-            Q(tags=OuterRef('tags')) | Q(tags=None),
+            Q(
+                tags__pk__in=Subquery(
+                    TaggedItem.objects.filter(
+                        **tag_query_filters
+                    ).values_list(
+                        'tag_id',
+                        flat=True
+                    )
+                )
+            ) | Q(tags=None),
             is_active=True,
         )