[BUG] Bucket aggregation fails after upgrading from 2.11 to 2.13 in BestBucketsDifferingCollector

[harshavamsi]

Describe the bug

After upgrading from 2.11 to 2.13, bucket aggregations queries that previously worked with terminate_after fail with

{"error":{"root_cause":[{"type":"illegal_state_exception","reason":"Cannot replay yet, collection is not finished: postCollect() has not been called"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"all_contexts4","node":"7pWVZteZQ9O-_vNCrFhj1Q","reason":{"type":"illegal_state_exception","reason":"Cannot replay yet, collection is not finished: postCollect() has not been called"}}],"caused_by":{"type":"illegal_state_exception","reason":"Cannot replay yet, collection is not finished: postCollect() has not been called","caused_by":{"type":"illegal_state_exception","reason":"Cannot replay yet, collection is not finished: postCollect() has not been called"}}},"status":500}

This is most likely coming from the changes made here https://github.com/opensearch-project/OpenSearch/pull/11421/files#diff-ce7faa9058609579cb9a555e07b5dda7699aef192a9a6252c0fcd0bdee9ff6ebR106

Related component

Search:Aggregations

To Reproduce

example query

"aggs": {
        "header": {
            "terms": {
                "field": "field1",
                "size": 100
            },
            "aggs": {
                "attributes": {
                    "nested": {
                        "path": "header2"
                    },
                    "aggs": {
                        "attribute_name_filter": {
                            "filter": {
                                "prefix": {
                                    "header3": {
                                        "value": "value1",
                                        "case_insensitive": true
                                    }
                                }
                            },
                        }
                    }
                }
            }
        }
    }

Expected behavior

Expected behavior is that the query works as it did in 2.11

Additional Details

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• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
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