Password prompt locks UI

[strfry]

Guitar doesn't seem to deal very well with Git asking for a password. I sometimes have to work with a server that didn't disable password-based SSH login, and when my SSH keys aren't available for whatever reason, I see this in the Log window:

> git fetch --tags -f
[email protected]'s password:

This locks the UI indefinitely, because there is no way to enter this password. Even when password based auth isn't supported by Guitar, this case should be detected so the operation can be aborted at this point. Or maybe there even is a Git option to disable password entries?