$ git clone -n https://src.fedoraproject.org/rpms/OpenColorIO.git /var/lib/mock/f40-build-2635870-66114/root/chroot_tmpdir/scmroot/OpenColorIO
Cloning into '/var/lib/mock/f40-build-2635870-66114/root/chroot_tmpdir/scmroot/OpenColorIO'...
$ git fetch origin 1b12f007f4dae5ee4fd2f42054a8873949606831:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/OpenColorIO
 * [new ref]         1b12f007f4dae5ee4fd2f42054a8873949606831 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b12f00 There's no longer a circular dependency with OIIO and OCIO.