$ git clone -n https://src.fedoraproject.org/rpms/vdr-skinelchihd.git /var/lib/mock/f39-build-1502001-34884/root/chroot_tmpdir/scmroot/vdr-skinelchihd
Cloning into '/var/lib/mock/f39-build-1502001-34884/root/chroot_tmpdir/scmroot/vdr-skinelchihd'...
$ git fetch origin df529b6ba0646cc3b8290c2da4880cf575a91832:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-skinelchihd
 * [new ref]         df529b6ba0646cc3b8290c2da4880cf575a91832 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df529b6 Update to 1.2.3