leftJoin instead of innerJoin for detectedJoins

[JulienSellier]

Hello there,

N.B: RulerZ will call the join() method on the query builder, so it will perform INNER joins by default.

But it's not the case : https://github.com/rulerz-php/doctrine-orm/blob/master/src/Executor/FilterTrait.php#L22

It made the "detect joins" features unusable.

Can someone fix it ?