bug: write back to another branch failed by rejected git push

[javierdompablo]

Describe the bug I have configured and argocd application called test-app that tracks a branch called argocd (main is protected). I then setup argocd-image-updater to checkout from master and then push to argocd branch, but I get the below error. How can I force push to the write back branch?

I am following the following steps https://argocd-image-updater.readthedocs.io/en/stable/basics/update-methods/#specifying-a-branch-to-commit-to

To Reproduce argocd-image-updater.argoproj.io/git-branch: master:argocd argocd-image-updater.argoproj.io/write-back-method: git

Version v2.9.5

Logs

level=error msg="Could not update application spec: could not push argocd to origin: `git push origin argocd` failed exit status 1: Warning: Permanently added 'github.com' (ED25519) to the list of known hosts.\r\nTo github.com:test-repo.git\n ! [rejected]        argocd -> argocd (non-fast-forward)\nerror: failed to push some refs to 'github.com:test-repo.git'\nhint: Updates were rejected because the tip of your current branch is behind\nhint: its remote counterpart. Integrate the remote changes (e.g.\nhint: 'git pull ...') before pushing again.\nhint: See the 'Note about fast-forwards' in 'git push --help' for details." application=test-app