$ git clone -n https://src.fedoraproject.org/rpms/vdr-iptv.git /var/lib/mock/f42-build-side-1-3585984-46912/root/chroot_tmpdir/scmroot/vdr-iptv
Cloning into '/var/lib/mock/f42-build-side-1-3585984-46912/root/chroot_tmpdir/scmroot/vdr-iptv'...
$ git fetch origin 22dc3f2add06e9b2e1b1433567d98a14b0d5540b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-iptv
 * [new ref]         22dc3f2add06e9b2e1b1433567d98a14b0d5540b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22dc3f2 Rebuilt for new VDR API version 2.7.4