$ git clone -n https://src.fedoraproject.org/rpms/vdr-remote.git /var/lib/mock/f40-build-1518934-23913/root/chroot_tmpdir/scmroot/vdr-remote
Cloning into '/var/lib/mock/f40-build-1518934-23913/root/chroot_tmpdir/scmroot/vdr-remote'...
$ git fetch origin 2184647942c3b19a9b430647c580023b13507bf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-remote
 * [new ref]         2184647942c3b19a9b430647c580023b13507bf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2184647 Rebuilt for new VDR API version 2.6.8