$ git clone -n https://src.fedoraproject.org/rpms/mapserver.git /var/lib/mock/f41-build-side-1-2812392-32940/root/chroot_tmpdir/scmroot/mapserver
Cloning into '/var/lib/mock/f41-build-side-1-2812392-32940/root/chroot_tmpdir/scmroot/mapserver'...
$ git fetch origin 55f4cddf6732e05db7199fda11fac5bc60867e2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mapserver
 * [new ref]         55f4cddf6732e05db7199fda11fac5bc60867e2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55f4cdd update to 8.2.2