$ git clone -n https://src.fedoraproject.org/rpms/plasma-firewall.git /var/lib/mock/f41-build-side-115201-61076161-6588638/root/chroot_tmpdir/scmroot/plasma-firewall
Cloning into '/var/lib/mock/f41-build-side-115201-61076161-6588638/root/chroot_tmpdir/scmroot/plasma-firewall'...
$ git fetch origin 27a78537a8ae436cf54b0a2228ccd150a4525394:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-firewall
 * [new ref]         27a78537a8ae436cf54b0a2228ccd150a4525394 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27a7853 6.4.3