$ git clone -n https://src.fedoraproject.org/rpms/fontforge.git /var/lib/mock/f39-build-1577250-37957/root/chroot_tmpdir/scmroot/fontforge
Cloning into '/var/lib/mock/f39-build-1577250-37957/root/chroot_tmpdir/scmroot/fontforge'...
$ git fetch origin 44b91146ba81c9fb69552519a0f276d36cad18c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fontforge
 * [new ref]         44b91146ba81c9fb69552519a0f276d36cad18c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44b9114 Drop unused libuninameslist dependency