$ git clone -n https://src.fedoraproject.org/rpms/puzzle-master.git /var/lib/mock/f40-build-2213369-52325/root/chroot_tmpdir/scmroot/puzzle-master
Cloning into '/var/lib/mock/f40-build-2213369-52325/root/chroot_tmpdir/scmroot/puzzle-master'...
$ git fetch origin 1b326368e9331635302cc39232b3c55e62a7e482:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/puzzle-master
 * [new ref]         1b326368e9331635302cc39232b3c55e62a7e482 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b32636 Orphaned for 6+ weeks