$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-code-unit-reverse-lookup4.git /var/lib/mock/f42-build-3224708-41155/root/chroot_tmpdir/scmroot/php-sebastian-code-unit-reverse-lookup4
Cloning into '/var/lib/mock/f42-build-3224708-41155/root/chroot_tmpdir/scmroot/php-sebastian-code-unit-reverse-lookup4'...
$ git fetch origin f40ce9bbad90eb19f8680b1ded4c603456fe3295:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-code-unit-reverse-lookup4
 * [new ref]         f40ce9bbad90eb19f8680b1ded4c603456fe3295 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f40ce9b relicense spece to CECILL-1.2