$ git clone -n https://src.fedoraproject.org/rpms/plasma-firewall.git /var/lib/mock/f41-build-851500-165983/root/chroot_tmpdir/scmroot/plasma-firewall
Cloning into '/var/lib/mock/f41-build-851500-165983/root/chroot_tmpdir/scmroot/plasma-firewall'...
$ git fetch origin 1cd2471b34454c517b8607e0483183623efb5265:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-firewall
 * [new ref]         1cd2471b34454c517b8607e0483183623efb5265 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cd2471 6.1.90