setRecord() not can Replace record if have one type and name, but ip different

[Nagatt511]

Zone test.com have record

    {
      "digest": "c43770f3010b79025a824891f70df4e4",
      "name": "sub1",
      "ttl": 1800,
      "type": "A",
      "content": "8.8.8.8"
    }

And i try add record use Replace 
like 

    			        $records = $resourceSet->getRecords();
				$newRecord = new Record();
				$newRecord->setContent($content); // 1.1.1.1

				array_push($records, $newRecord);
    					
    					/** @var ResourceSet $resourceSets */  get from zone
    					$resourceSet
						->setZone($zone)
						->setName($name)
						->setTtl($ttl)
						->setType($type) // A
						->setChangeType('REPLACE')
						->setRecords($records);

And i have error like=> "Duplicate record in RRset sub1.test.com. IN A with content "1.1.1.1""
But record in zone not exist

{
      "name": "sub1",
      "ttl": 1800,
      "type": "A",
      "content": "1.1.1.1"
    }

And NEXT if i cahnge to addRecord and use

				$newRecord = new Record();
				$newRecord->setContent($content); // 1.1.1.1

				array_push($records, $newRecord);
    					
    					/** @var ResourceSet $resourceSets */  get from zone
    					$resourceSet
						->setZone($zone)
						->setName($name)
						->setTtl($ttl)
						->setType($type) // A
						->setChangeType('REPLACE')
						->addRecord($newRecord);

Record added success, and zone records return

    {
      "name": "sub1",
      "ttl": 1800,
      "type": "A",
      "content": "8.8.8.8"
    },
    {
      "name": "sub1",
      "ttl": 1800,
      "type": "A",
      "content": "1.1.1.1"
    }

I think its BUG in setRecord.

[trizz]

Unfortunatly I can't reproduce your error using PowerDNS 4.8. The 8.8.8.8 record is replaced with 1.1.1.1 using the setRecords method as per your first example.

If you keep experiencing this problem please provide complete examples of your code, as well as the PowerDNS version you are using.