$ git clone -n https://src.fedoraproject.org/rpms/qmapshack.git /var/lib/mock/f39-build-1567672-37600/root/chroot_tmpdir/scmroot/qmapshack
Cloning into '/var/lib/mock/f39-build-1567672-37600/root/chroot_tmpdir/scmroot/qmapshack'...
$ git fetch origin 3c75705adb889eef8f6279af3b54f5767d68a1bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qmapshack
 * [new ref]         3c75705adb889eef8f6279af3b54f5767d68a1bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c75705 Update to 1.17.0 (rhbz#2224655)