$ git clone -n https://src.fedoraproject.org/rpms/vdr-remote.git /var/lib/mock/f40-build-2234018-53388/root/chroot_tmpdir/scmroot/vdr-remote
Cloning into '/var/lib/mock/f40-build-2234018-53388/root/chroot_tmpdir/scmroot/vdr-remote'...
$ git fetch origin 65f7f3e1962242755b628d9e564cf3a51f418092:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-remote
 * [new ref]         65f7f3e1962242755b628d9e564cf3a51f418092 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65f7f3e Rebuilt for new VDR API version