$ git clone -n https://src.fedoraproject.org/rpms/vdr-epgsearch.git /var/lib/mock/f40-build-1922744-25101/root/chroot_tmpdir/scmroot/vdr-epgsearch
Cloning into '/var/lib/mock/f40-build-1922744-25101/root/chroot_tmpdir/scmroot/vdr-epgsearch'...
$ git fetch origin c09520af859f5219810286d575d24b4b4009aa53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-epgsearch
 * [new ref]         c09520af859f5219810286d575d24b4b4009aa53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c09520a Rebuilt for new VDR API version 2.6.9