Combine autofix PR's
Every time something is pushed to master without having black run on it, a new PR is opened to do this formatting.
If I don't merge this PR instantly, it starts to conflict with master, and then if I make more changes additional PRs are created which often conflict with each other (if I have touched the same files)
It would be really handy if a single PR could be maintained against master, which has the latest autoformatting changes in it. Each time I push to master, if there is more code to be formatted, this should be altered on this single PR.
Would something like this be possible? Maybe as a config option, as it may not be best for everyone?