$ git clone -n https://src.fedoraproject.org/rpms/vdr-iptv.git /var/lib/mock/f42-build-864184-172199/root/chroot_tmpdir/scmroot/vdr-iptv
Cloning into '/var/lib/mock/f42-build-864184-172199/root/chroot_tmpdir/scmroot/vdr-iptv'...
$ git fetch origin eb3fa2e9a982c3b376f1a81a57b592ede7e042bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-iptv
 * [new ref]         eb3fa2e9a982c3b376f1a81a57b592ede7e042bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb3fa2e Rebuilt for new VDR API version 2.7.2