`refs/remotes/origin/main` not found

[haberdashPI]

First of all, thank you for working on this very useful tool. ❤️ ❤️ ❤️

After upgrading to jj version 0.43, when running jj-spr diff I now get this error:

Error: Revision `refs/remotes/origin/main` doesn't exist
  🛑  jujutsu exited with code 1, stderr:

Seems directly related to this item from the release notes:

Git-like symbols (e.g. refs/heads/main) are no longer resolved to revisions. Use the bookmark/tag or @ syntax instead.