$ git clone -n https://src.fedoraproject.org/rpms/vdr-iptv.git /var/lib/mock/f40-build-804543-144553/root/chroot_tmpdir/scmroot/vdr-iptv
Cloning into '/var/lib/mock/f40-build-804543-144553/root/chroot_tmpdir/scmroot/vdr-iptv'...
$ git fetch origin 134d52764f5ad5ba137d34dcab4cba40325efba3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-iptv
 * [new ref]         134d52764f5ad5ba137d34dcab4cba40325efba3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 134d527 Rebuilt for new VDR API version