$ git clone -n https://src.fedoraproject.org/rpms/opal-prd.git /var/lib/mock/f42-build-3279781-41338/root/chroot_tmpdir/scmroot/opal-prd
Cloning into '/var/lib/mock/f42-build-3279781-41338/root/chroot_tmpdir/scmroot/opal-prd'...
$ git fetch origin 43ebd98fef91e2eb2cd6cadd541b126a7efa9843:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opal-prd
 * [new ref]         43ebd98fef91e2eb2cd6cadd541b126a7efa9843 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43ebd98 update for https://fedoraproject.org/wiki/Changes/Unify_bin_and_sbin