$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-type6.git /var/lib/mock/f42-build-3224751-41162/root/chroot_tmpdir/scmroot/php-sebastian-type6
Cloning into '/var/lib/mock/f42-build-3224751-41162/root/chroot_tmpdir/scmroot/php-sebastian-type6'...
$ git fetch origin 4f0e9795b7c9fdb4fa32c9f6489721b49c5e767f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-type6
 * [new ref]         4f0e9795b7c9fdb4fa32c9f6489721b49c5e767f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f0e979 enable tests