Restore the commment

Author: maneuvertomars

search/searcher/search_custom_fields.go

@@ -22,13 +22,6 @@ import (
 	index "github.com/blevesearch/bleve_index_api"
 )
 
-// loadDocValuesOnHit resolves hit.ID and returns the hit's doc-value fields in a
-// new map the caller owns. See loadDocValuesOnHitWithTypes.
-func loadDocValuesOnHit(hit *search.DocumentMatch, dvReader index.DocValueReader,
-	r index.IndexReader) (map[string]interface{}, error) {
-	return loadDocValuesOnHitWithTypes(hit, dvReader, r, nil)
-}
-
 // loadDocValuesOnHitWithTypes resolves hit.ID and returns the hit's doc-value
 // fields in a new map. It does not touch hit.Fields, so these UDF-input fields
 // can't leak into SearchRequest.Fields; the caller owns the map. Returns nil

search_knn.go

@@ -479,8 +479,7 @@ func setKnnHitsInCollector(knnHits []*search.DocumentMatch, coll *collector.TopN
 		mergeFn := func(ftsMatch *search.DocumentMatch, knnMatch *search.DocumentMatch) {
 			// Boost the FTS score using the KNN score
 			ftsMatch.Score += knnMatch.Score
-			// Capture the merged explanation; MergeWith doesn't always mutate
-			// the receiver, so ignoring the return value drops the KNN part.
+			// Combine the FTS explanation with the KNN explanation, if present
 			ftsMatch.Expl = ftsMatch.Expl.MergeWith(knnMatch.Expl)
 		}
 		coll.SetKNNHits(knnHits, search.HybridMergeCallbackFn(mergeFn))