cannot get custom filtering to work

in ItemRepository I have a method:

```
public function filterImages($query, $method, $clauseOperator, $value, $in)
{
if ($in) {
call_user_func([$query, $method], 'product.categories', $value);
} else {
call_user_func([$query, $method], 'product.categories', $clauseOperator, $value);
}
}
```
when i filter for key "images" and value "image.jpg" this error always comes back:

>
"Argument 1 passed to Infrastructure\Database\Eloquent\Repository::filterImages() must be an instance of Optimus\Bruno\EloquentBuilderTrait, instance of Illuminate\Database\Eloquent\Builder given",

Start in ItemRepository at the filterImages method and reproduce filtering with key "images" and value "image.jpg". Trace why the method receives an Illuminate\\Database\\Eloquent\\Builder instead of the expected Optimus\\Bruno\\EloquentBuilderTrait type; done means the filter runs without the reported type error and returns the expected results.

Written by the indexing model from the issue text.