$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-object-enumerator6.git /var/lib/mock/f42-build-3224728-41159/root/chroot_tmpdir/scmroot/php-sebastian-object-enumerator6
Cloning into '/var/lib/mock/f42-build-3224728-41159/root/chroot_tmpdir/scmroot/php-sebastian-object-enumerator6'...
$ git fetch origin ff4a249536db9e0886519a878479a478fa24178b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-object-enumerator6
 * [new ref]         ff4a249536db9e0886519a878479a478fa24178b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff4a249 enable test suite