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Merge pull request #2780 from heyderpd/master

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fixing error when _get_default return value that already exists, on _get_appended_list
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Bert Blommers 2020-03-06 08:38:49 +00:00 • committed by GitHub
commit 03164e7b60
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2 changed files with 28 additions and 3 deletions
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6
moto/dynamodb2/models.py
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@ -450,9 +450,9 @@ class Item(BaseModel):
old_list_key = list_append_re.group(1)
# old_key could be a function itself (if_not_exists)
if old_list_key.startswith("if_not_exists"):
old_list = DynamoType(
expression_attribute_values[self._get_default(old_list_key)]
)
old_list = self._get_default(old_list_key)
if not isinstance(old_list, DynamoType):
old_list = DynamoType(expression_attribute_values[old_list])
else:
old_list = self.attrs[old_list_key.split(".")[0]]
if "." in old_list_key: