Hello,
When executing "git branch <branch> --edit-description" on a branch with no description set, I get "fatal: could not unset 'branch.<branch>.description". It would seem that the unsetting piece should occur only after checking if it was set in the first place. I am not too familiar with the inner workings of git, but if you accept pull requests, I'm happy to give it a shot if you can give me directions as to how to submit one to you.
While I have you, I would also like to make a feature request for branch descriptions to (optionally) be included in the output of git branch <noargs> (or something like git branch --descriptions). This is particularly helpful where branch names match JIRA tickets numbers or are simply so old I don't remember what they are but don't want to delete them just in case.
Thank you for maintaining this absolutely wonderful program, and have a happy New Year!
Best,
Jake
Jake Lambert
Full Stack Developer
The Company On A Hill
www.onahill.co