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Diffstat (limited to 'django/db/models/base.py')
| -rw-r--r-- | django/db/models/base.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/django/db/models/base.py b/django/db/models/base.py index a505efa87d..cb1d37f9df 100644 --- a/django/db/models/base.py +++ b/django/db/models/base.py @@ -596,7 +596,7 @@ class Model(six.with_metaclass(ModelBase)): if field.rel and field.get_cache_name() in self.__dict__: rel_instance = getattr(self, field.get_cache_name()) local_val = getattr(db_instance, field.attname) - related_val = getattr(rel_instance, field.related_field.attname) + related_val = None if rel_instance is None else getattr(rel_instance, field.related_field.attname) if local_val != related_val: del self.__dict__[field.get_cache_name()] self._state.db = db_instance._state.db |