Refs #27849 -- Fixed filtered aggregates crash on filters that match everything.

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/aggregation/test_filter_argument.py b/tests/aggregation/test_filter_argument.py
index caf2cd3d6f..3ef0401d4d 100644
--- a/tests/aggregation/test_filter_argument.py
+++ b/tests/aggregation/test_filter_argument.py
@@ -205,3 +205,16 @@ class FilteredAggregateTests(TestCase):
             max_rating=Max("rating", filter=Q(rating__in=[]))
         )
         self.assertEqual(aggregate, {"max_rating": None})
+
+    def test_filtered_aggregate_full_condition(self):
+        book = Book.objects.annotate(
+            authors_count=Count(
+                "authors",
+                filter=~Q(authors__in=[]),
+            ),
+        ).get(pk=self.b1.pk)
+        self.assertEqual(book.authors_count, 2)
+        aggregate = Book.objects.aggregate(
+            max_rating=Max("rating", filter=~Q(rating__in=[]))
+        )
+        self.assertEqual(aggregate, {"max_rating": 4.5})