$ git clone -n https://src.fedoraproject.org/rpms/klt.git /var/lib/mock/f41-build-1185394-22044/root/chroot_tmpdir/scmroot/klt
Cloning into '/var/lib/mock/f41-build-1185394-22044/root/chroot_tmpdir/scmroot/klt'...
$ git fetch origin bd1f690e9dddfa49e978ec477c041d33c4ead63e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klt
 * [new ref]         bd1f690e9dddfa49e978ec477c041d33c4ead63e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd1f690 Eliminate use of obsolete %patchN syntax (#2283636)