fix boosting for knn

Author: Samiul-TheSoccerFan

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/queries/SemanticKnnVectorQueryRewriteInterceptor.java

@@ -148,6 +148,8 @@ private KnnVectorQueryBuilder addIndexFilterToKnnVectorQuery(Collection<String>
             );
         }
 
+        copy.boost(original.boost());
+        copy.queryName(original.queryName());
         copy.addFilterQueries(original.filterQueries());
         copy.addFilterQuery(new TermsQueryBuilder(IndexFieldMapper.NAME, indices));
         return copy;
@@ -187,6 +189,8 @@ private KnnVectorQueryBuilder buildNewKnnVectorQuery(
             );
         }
 
+        newQueryBuilder.boost(original.boost());
+        newQueryBuilder.queryName(original.queryName());
         newQueryBuilder.addFilterQueries(original.filterQueries());
         return newQueryBuilder;
     }