In PR #705, we removed redundant git checkout {{.Branch}} commands from kelos-pr-responder.yaml since Kelos automatically checks out the branch before the agent starts.
The same redundant git checkout {{.Branch}} exists in self-development/kelos-squash-commits.yaml (line 63) and should be removed for consistency.
This was identified during review of #705 but kept out of scope to keep the change minimal.