[Sqlalchemy-tickets] Issue #3865: JSON column default with __init__ (zzzeek/sqlalchemy)

[jdkida <iss...@bi...>]

New issue 3865: JSON column default with __init__
https://bitbucket.org/zzzeek/sqlalchemy/issues/3865/json-column-default-with-__init__

jdkida:


```
#!python

class TestTable(Base):
    test_json = Column(JSON, default={"test": "test"})
    test_string = Column(String, default='test')
    def __init__(self, test_json=None, test_string=None):
        test_json=test_json
        test_string=test_string

# insert and query
session.add(TestTable())
session.commit()

tests = session.query(TestTable).all()
for t in tests:
    print(t.test_json, t.test_string)
```
None, 'test'





Responsible: zzzeek