$ git clone -n https://src.fedoraproject.org/rpms/vdr-remote.git /var/lib/mock/f40-build-1922758-25101/root/chroot_tmpdir/scmroot/vdr-remote
Cloning into '/var/lib/mock/f40-build-1922758-25101/root/chroot_tmpdir/scmroot/vdr-remote'...
$ git fetch origin 808f040383f051d53c9ccf4e0b86e3f2efb0146a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-remote
 * [new ref]         808f040383f051d53c9ccf4e0b86e3f2efb0146a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 808f040 Rebuilt for new VDR API version 2.6.9