Refs -- Changed BaseDatabaseFeatures.django_test_expected_failures to set().
@@ -325,7 +325,7 @@ class BaseDatabaseFeatures:
# A set of dotted paths to tests in Django's test suite that are expected
# to fail on this database.
- django_test_expected_failures = {}
+ django_test_expected_failures = set()
# A map of reasons to sets of dotted paths to tests in Django's test suite
# that should be skipped for this database.
django_test_skips = {}
