$ git clone -n https://src.fedoraproject.org/rpms/maven-enforcer.git /var/lib/mock/f40-build-2133875-50815/root/chroot_tmpdir/scmroot/maven-enforcer
Cloning into '/var/lib/mock/f40-build-2133875-50815/root/chroot_tmpdir/scmroot/maven-enforcer'...
$ git fetch origin 3b002a4ac83311b8e7587bb24b9a536b2b44ce6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-enforcer
 * [new ref]         3b002a4ac83311b8e7587bb24b9a536b2b44ce6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b002a4 Update javapackages test plan to f40