We have enabled the Skip initial build on first branch indexing build strategy:
as a workaround to JENKINS-56255 but it seems to also be not working. We are still getting the branch build from GitHub PRs happening when a new PR is pushed. Am I misunderstanding what this build strategy does?
It did seem to work for a while, but maybe that was just the intermittent-ness of JENKINS-56255 on our side for a while.