skpm publish swallows prompt for passphrase when git pushing
I've had no trouble publishing before, but suddenly it's not working. I've logged in with a GitHub access token like before (did a factory reset since so it had to be regenerated), which skpm told me was successful. The usual "Publish 2.0.1 release" and "Update .appcast ..." commits appear in my local branch in SourceTree, but in Terminal it's just stuck on "Pushing the changes to Github". 

Under releases I can see what looks like an unfinished 2.0.1 release? And the update appears in Sketch 50 with a notification, but pressing "Update" in the plugin list has no effect. Here's my releases as they look now:

https://github.com/sigtm/sketch-style-libraries/releases

Any idea why this might be happening? A bit desperate to get this fix out, since my plugin won't work in Sketch 50 until I do :/