$ git clone -n https://src.fedoraproject.org/rpms/vdr-skinenigmang.git /var/lib/mock/f42-build-864194-172199/root/chroot_tmpdir/scmroot/vdr-skinenigmang
Cloning into '/var/lib/mock/f42-build-864194-172199/root/chroot_tmpdir/scmroot/vdr-skinenigmang'...
$ git fetch origin 9fce256efe83d1a3b368d907e3a990ec4d9d8992:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-skinenigmang
 * [new ref]         9fce256efe83d1a3b368d907e3a990ec4d9d8992 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fce256 Rebuilt for new VDR API version 2.7.2