$ git clone -n https://src.fedoraproject.org/rpms/OpenImageIO.git /var/lib/mock/f40-build-735409-106378/root/chroot_tmpdir/scmroot/OpenImageIO
Cloning into '/var/lib/mock/f40-build-735409-106378/root/chroot_tmpdir/scmroot/OpenImageIO'...
$ git fetch origin 872b1c2de97ab23038bec62661908075f5b54078:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/OpenImageIO
 * [new ref]         872b1c2de97ab23038bec62661908075f5b54078 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 872b1c2 Rebuild for openvdb-10.1.0 (close RHBZ#2246603)