$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-comparator6.git /var/lib/mock/f42-build-3224722-41158/root/chroot_tmpdir/scmroot/php-sebastian-comparator6
Cloning into '/var/lib/mock/f42-build-3224722-41158/root/chroot_tmpdir/scmroot/php-sebastian-comparator6'...
$ git fetch origin cf2c4ced0d4d0f35421ba8ad164ab348bc704ae8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-comparator6
 * [new ref]         cf2c4ced0d4d0f35421ba8ad164ab348bc704ae8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf2c4ce enable test suite