Misreported related fields missing managers

tests/typecheck/managers/test_managers.yml

@@ -762,6 +762,68 @@
                     generic_manager_from_generic_queryset = GenericManagerFromGenericQuerySet()
                     generic_manager_from_populated_queryset = GenericManagerFromPopulatedQuerySet()
 
+-   case: test_related_managers_from_queryset
+    main: |
+        from myapp.models import MyModel, RelatedModel
+        reveal_type(MyModel._default_manager)  # N: Revealed type is "myapp.models.ManagerFromCustomQuerySet[myapp.models.MyModel]"
+
+    installed_apps:
+        - myapp
+    files:
+        -   path: myapp/__init__.py
+        -   path: myapp/models.py
+            content: |
+                from django.db import models
+
+                class CustomQuerySet(models.QuerySet): ...
+
+                class BaseModel(models.Model):
+                    objects = CustomQuerySet.as_manager()
+
+                    class Meta:
+                        abstract = True
+
+                class RelatedModel(BaseModel): ...
+
+                class MyModel(BaseModel):
+                    related = models.ForeignKey(RelatedModel, on_delete=models.CASCADE, related_name="my_models")
+
+-   case: test_related_custom_managers_from_queryset
+    main: |
+        from myapp.models import MyModel, RelatedModel
+        reveal_type(MyModel._default_manager)  # N: Revealed type is "django.db.models.manager.Manager[myapp.models.MyModel]"
+    out: |
+        myapp/models:13: error: Could not resolve manager type for "myapp.models.BaseModel.objects"  [django-manager-missing]
+        myapp/models:18: error: Couldn't resolve related manager 'my_models' for relation 'myapp.models.MyModel.related'.  [django-manager-missing]
+
+    installed_apps:
+        - myapp
+    files:
+        -   path: myapp/__init__.py
+        -   path: myapp/models.py
+            content: |
+                from django.db import models
+
+                class CustomManager(models.Manager): ...
+
+                class ManagedQuerySet(models.QuerySet):
+                    @classmethod
+                    def as_manager(cls) -> CustomManager:
+                        manager = CustomManager.from_queryset(cls)()
+                        manager._built_with_as_manager = True  # type: ignore[attr-defined]
+                        return manager
+
+                class BaseModel(models.Model):
+                    objects = ManagedQuerySet.as_manager()
+
+                    class Meta:
+                        abstract = True
+
+                class RelatedModel(BaseModel): ...
+
+                class MyModel(BaseModel):
+                    related = models.ForeignKey(RelatedModel, on_delete=models.CASCADE, related_name="my_models")
+
 # Regression test for #2304
 -   case: test_objects_managers_is_kept_with_specific_import_graph
     main: |