Nesting in attribute search API

[Nipun_r]

While fetching attribute info, if I apply search criteria in a nested way, it does not work. But in case of single search criteria it works perfectly.

Nested HTTP request:

http://192.168.1.180/magento/index.php/rest/V1/products/attributes?searchCriteria[filter_groups][0][...

Output: 
{
  "items": [],
  "search_criteria": {
    "filter_groups": [
      {
        "filters": [
          {
            "field": "attribute_code",
            "value": "size",
            "condition_type": "eq"
          },
          {
            "field": "attribute_code",
            "value": "color",
            "condition_type": "eq"
          }
        ]
      }
    ]
  },
  "total_count": 0
}

But when I hit the non nested one, I get results for both size as well as color.

Non Nested:

http://192.168.1.180/magento/index.php/rest/V1/products/attributes?searchCriteria[filter_groups][0][...

[akent99]

Just FYI, there may be a bug relevant to this area that has been identified.