Fixed #34254 -- Fixed return value of Exists() with empty queryset.

Thanks Simon Charette for reviews.

tests/annotations/tests.py

@@ -1017,6 +1017,14 @@ class NonAggregateAnnotationTestCase(TestCase):
             ],
         )
 
+    def test_annotation_exists_none_query(self):
+        self.assertIs(
+            Author.objects.annotate(exists=Exists(Company.objects.none()))
+            .get(pk=self.a1.pk)
+            .exists,
+            False,
+        )
+
     def test_annotation_exists_aggregate_values_chaining(self):
         qs = (
             Book.objects.values("publisher")