In troubleshooting an issue with github pull requests not building the actual fork/branch that was to be merged, i poked around in the jenkins ci configuration here:
https://ci-builds.apache.org/job/JSPWiki/job/ci/configure and changed "*Discover pull requests from forks*" from "Merging the pull request with the current target branch revision" to "The current pull request revision" This seemed to trigger a rebuild on all open PRs. I'm currently monitoring the builds to see if this broke anything. Easy to roll back if needed. I'm not sure what the impacts of this are but I figured it was worth a shot and should have little to no risk
