a release branch is checked based on matching the pattern release/v*. making a PR to a release branch wont match that pattern so that check will be false which will reset some templated files to the incorrect state.

Possible solutions:

• make isReleaseBranch config only that needs to be set manually per branch
• make branch pattern match PR branches and require PRs to release branches be named according to that pattern (eg release/v9-update-config)