Automatic merging should have better integration with the git flow model

It would be really nice for Stash to have better integration with git flow (http://nvie.com/posts/a-successful-git-branching-model/) like it does for release branches.

In Stash, we can specify release, hotfix, feature, and bugfix branches in the Branching Model page in the repository settings, but Automatic Merging only affects the release branches.

The git flow model specifies that hotfix branches must also merge back into both develop and master. Right now, I have to make two pull requests, one into develop and one into master.

More broadly, it would be nice for Stash to have Git Flow buttons (e.g. "Finish Hotfix") like SourceTree does that would automatically generate a pull request into the correct branch(es).