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-rw-r--r--django/db/models/sql/query.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py
index e5e11f472a..b55de3d766 100644
--- a/django/db/models/sql/query.py
+++ b/django/db/models/sql/query.py
@@ -1791,13 +1791,18 @@ class Query(object):
existing immediate values, but respects existing deferrals.)
"""
existing, defer = self.deferred_loading
+ field_names = set(field_names)
+ if 'pk' in field_names:
+ field_names.remove('pk')
+ field_names.add(self.model._meta.pk.name)
+
if defer:
# Remove any existing deferred names from the current set before
# setting the new names.
- self.deferred_loading = set(field_names).difference(existing), False
+ self.deferred_loading = field_names.difference(existing), False
else:
# Replace any existing "immediate load" field names.
- self.deferred_loading = set(field_names), False
+ self.deferred_loading = field_names, False
def get_loaded_field_names(self):
"""