backpack crud filters by pivot table

PLease, somebody, help me with filters. I have 3 tables: complaint, frontend_tag, frontendtags_complaints I heed to filter complaints by frontend_tag

here is my filter code:

$this->crud->addFilter([
            'name' => 'frontendtags',
            'type' => 'select2',
            'label'=> 'FE Tag'
        ], function() {
            return \App\Models\FrontendTags::all()->pluck('name', 'id')->toArray();
        }, function($value) {
            return $this->crud->query->whereHas('frontendtags', function ($q) use ($value) {
                $q->where('tag_id', $value);
            });
        });

here is my relation code:

 public function frontendtags()
    {
        return $this->belongsToMany('App\Models\FrontendTags', 'frontendtags_complaints', 'complaint_id', 'tag_id');
    }

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The filter is not working.

via Roman Zaglinskyi