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-rw-r--r--django/db/models/sql/compiler.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/django/db/models/sql/compiler.py b/django/db/models/sql/compiler.py
index 3d133cb672..7649c39262 100644
--- a/django/db/models/sql/compiler.py
+++ b/django/db/models/sql/compiler.py
@@ -892,7 +892,9 @@ class SQLCompiler:
from_parent = issubclass(model, opts.model) and model is not opts.model
def local_setter(obj, from_obj):
- f.remote_field.set_cached_value(from_obj, obj)
+ # Set a reverse fk object when relation is non-empty.
+ if from_obj:
+ f.remote_field.set_cached_value(from_obj, obj)
def remote_setter(obj, from_obj):
setattr(from_obj, name, obj)