4 Use choosing strategy Gerrit Trigger in container/jar and
5 package cloud release merge jobs. This retains the current
6 behavior in the simple merge case, and ensures that a job
7 triggered by a "remerge" comment uses the release file at
8 that commit. The previous choosing strategy, default, uses
9 the tip of the target branch. That does not allow recovery
10 from merge job failure if the target branch has advanced past
11 the commit with the release file.