diff options
Diffstat (limited to 'django')
| -rw-r--r-- | django/db/models/query.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/django/db/models/query.py b/django/db/models/query.py index a21a091af0..1544beb613 100644 --- a/django/db/models/query.py +++ b/django/db/models/query.py @@ -1556,7 +1556,7 @@ def prefetch_related_objects(model_instances, *related_lookups): while all_lookups: lookup = all_lookups.pop() if lookup.prefetch_to in done_queries: - if lookup.queryset: + if lookup.queryset is not None: raise ValueError("'%s' lookup was already seen with a different queryset. " "You may need to adjust the ordering of your lookups." % lookup.prefetch_to) |