schmidsi/towel — comment on commit 67885763af00f313cb7a0fd7422a151c674a5e1b
File: towel/modelview.py line 559
By matthiask:

should be `instance if (instance is not None) else self.model()`

`if instance` can return False even if `instance is not None` (http://docs.python.org/reference/datamodel.html#object\.\_\_nonzero\_\_)