$ git clone -n https://src.fedoraproject.org/rpms/openqa.git /var/lib/mock/f40-build-2541867-61878/root/chroot_tmpdir/scmroot/openqa
Cloning into '/var/lib/mock/f40-build-2541867-61878/root/chroot_tmpdir/scmroot/openqa'...
$ git fetch origin 6be16b502b09ac4ab35e93f8731aa2649d6037d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openqa
 * [new ref]         6be16b502b09ac4ab35e93f8731aa2649d6037d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6be16b5 Update to latest upstream git, resync spec