Checklist

• I've searched the issue queue to verify this is not a duplicate bug report.
• I've included steps to reproduce the bug.
• I've pasted the output of kargo version.
• I've pasted logs, if applicable.

Description

It seems the built-in retry functionality is not working for git-push when two stages are trying to concurrently push to the same branch, but different file locations.

The docs state that the step should handle this scenario by doing a pull/rebase up to 50 times be default, but this does not seem to be happening.

No config options for the git-push step are being set other than:

• path
• targetBranch

Error:

step "task-1::do-push" met error threshold of 1: error running step "task-1::do-push": error pushing commits to remote: error pushing branch: error executing cmd [/usr/bin/git push origin HEAD:main]: To https://my-repo.git ! [remote rejected] HEAD -> main (incorrect old value provided) error: failed to push some refs to 'https://my-repo.git'

Screenshots

N/A

Steps to Reproduce

Using a remote GitLab project:

1. Create two stages which run in parallel, writing to the same repo/branch, but to separate file locations.
2. Trigger promotion for them both through a prior stage: "Promote to downstream"
3. One of the stages successfully pushes, but the 2nd one fails with the above error.

Version

Kargo: v1.8.1

GitLab: 18.5

Logs

N/A