How to ignore "Dragonfly::FileDataStore destroy error"?

Hi,

Using v1.0.12 here, I hope it's recent enough and not pertaining to the problem.

When I try to upload a new attachment for a record whose previous attachment file has been deleted from disc I get a DRAGONFLY: Dragonfly::FileDataStore destroy error: No such file or directory @ unlink_internal error and the update fails.

It seems to me there ought to be an option to ignore fails like this and just assign the new attachment. How should I work around this problem?