$ git clone -n https://src.fedoraproject.org/rpms/vdr-iptv.git /var/lib/mock/f40-build-1922753-25101/root/chroot_tmpdir/scmroot/vdr-iptv
Cloning into '/var/lib/mock/f40-build-1922753-25101/root/chroot_tmpdir/scmroot/vdr-iptv'...
$ git fetch origin 171130bc84d89186400cc24702912ae249c10572:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-iptv
 * [new ref]         171130bc84d89186400cc24702912ae249c10572 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 171130b Merge branch 'rawhide' into f40