I have a build parameter, branch, which is passed to the git "Branches to build" setting. When this parameter is set to '*', '**', or is empty, the last built revision gets built again instead of an updated branch HEAD. Setting this parameter to a specific branch name, such as 'development' or 'master' will build the HEAD of the specified branch. Directly setting git "Branches to build" to '*', '**', or leaving it empty will cause an updated branch HEAD to build properly.