$ git clone -n https://src.fedoraproject.org/rpms/dnssec-trigger.git /var/lib/mock/f41-build-852434-166343/root/chroot_tmpdir/scmroot/dnssec-trigger
Cloning into '/var/lib/mock/f41-build-852434-166343/root/chroot_tmpdir/scmroot/dnssec-trigger'...
$ git fetch origin b0889c46e924ee4e625d4c3242c872018c195d50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnssec-trigger
 * [new ref]         b0889c46e924ee4e625d4c3242c872018c195d50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0889c4 Mark explicitly server cert with CA flag