$ git clone -n https://src.fedoraproject.org/rpms/ocfs2-tools.git /var/lib/mock/f42-build-867468-175508/root/chroot_tmpdir/scmroot/ocfs2-tools
Cloning into '/var/lib/mock/f42-build-867468-175508/root/chroot_tmpdir/scmroot/ocfs2-tools'...
$ git fetch origin d6ce354b3e9e314234c2f37f9915dc2996e40c7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocfs2-tools
 * [new ref]         d6ce354b3e9e314234c2f37f9915dc2996e40c7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6ce354 Rebuilt for the bin-sbin merge (2nd attempt)