carrierwaveuploader/carrierwave — pull request #1383 by semenyukdmitriy (2014-05-12 08:00:25+00:00)
Title: Reset mounter cache on record reload

```
user = User.create(avatar: some_file)
user.avatar.present? # => true

double_user = User.find(user.id)
dobule_user.remove_avatar = true
double_user.save

user.reload
user.avatar.present? # => true, but should be false
```