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-rw-r--r--django/contrib/gis/db/models/fields.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/django/contrib/gis/db/models/fields.py b/django/contrib/gis/db/models/fields.py
index 5e869a8243..12af07b9b7 100644
--- a/django/contrib/gis/db/models/fields.py
+++ b/django/contrib/gis/db/models/fields.py
@@ -167,6 +167,8 @@ class BaseSpatialField(Field):
def get_prep_value(self, value):
obj = super().get_prep_value(value)
+ if obj is None:
+ return None
# When the input is not a geometry or raster, attempt to construct one
# from the given string input.
if isinstance(obj, GEOSGeometry):