$ git clone -n https://src.fedoraproject.org/rpms/mgetty.git /var/lib/mock/f40-build-2228442-53081/root/chroot_tmpdir/scmroot/mgetty
Cloning into '/var/lib/mock/f40-build-2228442-53081/root/chroot_tmpdir/scmroot/mgetty'...
$ git fetch origin d373645b413d9b4b5daf89b59daa707d2555911e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mgetty
 * [new ref]         d373645b413d9b4b5daf89b59daa707d2555911e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d373645 SPDX migration, fix patch warnings