Missing remote branch tracking after running `shortcake submit` on a local-only adopted branch

[buurro]

When running shortcake submit after shortcake adopt on an untracked local branch, the newly created remote branch is not tracked

Expected behavior:

• A remote branch gets created
• The local branch tracks the remote branch

Current behavior:

• A remote branch gets created
• The local branch does not track the new remote branch

Example:

❯❯❯ git checkout -b some-branch
Switched to a new branch 'some-branch'

❯❯❯ sc adopt
Adopted branch 'some-branch' with parent 'main'

❯❯❯ sc submit
Submitting some-branch... created PR #2

Submitted PRs:
  • some-branch: https://github.com/buurro/some-repo/pull/2

❯❯❯ git pull
There is no tracking information for the current branch.
Please specify which branch you want to merge with.
See git-pull(1) for details.

    git pull <remote> <branch>

If you wish to set tracking information for this branch you can do so with:

    git branch --set-upstream-to=origin/<branch> some-branch

[patrick91]

Triaged against main at 52da8bd.

This still appears live. push_branch(...) currently runs git push origin refs/heads/<branch> --force and does not set upstream tracking on first push. A fix likely needs to set upstream when the remote branch does not yet exist, while preserving the existing force-with-lease safety path for updates.