$ git clone -n https://src.fedoraproject.org/rpms/vdr-epg2vdr.git /var/lib/mock/f40-build-1898254-25068/root/chroot_tmpdir/scmroot/vdr-epg2vdr
Cloning into '/var/lib/mock/f40-build-1898254-25068/root/chroot_tmpdir/scmroot/vdr-epg2vdr'...
$ git fetch origin 6eb70d5617da9409849f21ea2d45108ad9b7a391:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-epg2vdr
 * [new ref]         6eb70d5617da9409849f21ea2d45108ad9b7a391 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6eb70d5 Rebuilt for new VDR API version 2.6.9