$ git clone -n https://src.fedoraproject.org/forks/hypersa/rpms/ghc-x509-validation.git /var/lib/mock/f39-build-2208505-52137/root/chroot_tmpdir/scmroot/ghc-x509-validation
Cloning into '/var/lib/mock/f39-build-2208505-52137/root/chroot_tmpdir/scmroot/ghc-x509-validation'...
$ git fetch origin 8a7065915c8319c8aa96c43952686a5472ad4d81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/hypersa/rpms/ghc-x509-validation
 * [new ref]         8a7065915c8319c8aa96c43952686a5472ad4d81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a70659 rv64 rebuild