Preconditions (*)

1.Magento 2.3.5-p2 had issue on product custom attribute Filter with custom source (Setup/Patch/CustomSelectOption)

2.But it's Working in Product Collection

Steps to reproduce (*)

1.Magento 2.3.5-p2

2.Create custom product attribute via setup patch (with select option) - also custom source model file

class ProductCustomType extends AbstractSource
{
    public function getAllOptions()
    {
        if ($this->_options === null) {
            $this->_options = [

                ['value' => '', 'label' => __('-- Select an Option --')],
                ['value' => 'new', 'label' => __('New')],
                ['value' => 'old', 'label' => __('Old')],
               
            ];
        }
        return $this->_options;
    }
}

3.Assign product type to any of the product

4.Graphql

Req:

{
  products(filter:{
    product_custom_type:{
      eq:"new"
     }
  
  }){
    total_count
    items{
      id
     sku
    product_custom_type
    }
  }
}

Response:

{
  "data": {
    "products": {
      "total_count": 0,
      "items": []
    }
  }
}

Expected result (*)

1. Get Products in Products query Response.

Actual result (*)

Response:

{
  "data": {
    "products": {
      "total_count": 0,
      "items": []
    }
  }
}

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.