$ git clone -n https://src.fedoraproject.org/rpms/vdr-epg2vdr.git /var/lib/mock/f41-build-1033742-18591/root/chroot_tmpdir/scmroot/vdr-epg2vdr
Cloning into '/var/lib/mock/f41-build-1033742-18591/root/chroot_tmpdir/scmroot/vdr-epg2vdr'...
$ git fetch origin 30ad20ec44ae3a1b9a61e4f78f0b007983f30c19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-epg2vdr
 * [new ref]         30ad20ec44ae3a1b9a61e4f78f0b007983f30c19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30ad20e convert GPL+ license to SPDX