$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-code-unit-reverse-lookup4.git /var/lib/mock/f42-build-3224724-41158/root/chroot_tmpdir/scmroot/php-sebastian-code-unit-reverse-lookup4
Cloning into '/var/lib/mock/f42-build-3224724-41158/root/chroot_tmpdir/scmroot/php-sebastian-code-unit-reverse-lookup4'...
$ git fetch origin ad16896c6872f6169a7da17e9946fd5acf7a3639:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-code-unit-reverse-lookup4
 * [new ref]         ad16896c6872f6169a7da17e9946fd5acf7a3639 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad16896 enable test suite