txwei opened a new pull request, #16176:
URL: https://github.com/apache/lucene/pull/16176

   ### Description
   
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   Lucene https://github.com/apache/lucene/pull/13408 (released in 10.0) 
dropped a guard in `BooleanScorerSupplier.optionalBulkScorer` that previously 
kept `TOP_SCORES + minShouldMatch > 1` queries on `WANDScorer`. As a side 
effect, when matches are dense, dispatch now lands on BooleanScorer, which has 
no top-K impact pruning — causing 10–100× latency regressions on pure-should 
compound queries with minimumShouldMatch > 1.


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