Allow mismatched local/remote branch names

[erich-clickup]

Summary

Using worktrees, each worktree needs to check its own branch.
But they can all be setup to track master so that git grok and git pull --rebase commands all still work properly.

Seems like all that needs to be done is check the upstream for the remote branch name

How was this tested?

git worktree add wt-test
git branch --set-upstream-to=origin/master
git config push.default upstream