Bot pushes second commit to branch *after* raising PR.

[sengi]

When adding a new user, the bot raises a PR then pushes a second commit to it. The gap in between where there's an open PR with only one of two commits pushed can sometimes be minutes.

The bot should either just put both changes in the same commit (preferred, because to commit one change without the other wouldn't make sense in this case) or at least not push or raise the PR until it's made both commits locally.