Make sure to use nestedScope levels when building nested filters

core/src/main/java/org/elasticsearch/index/query/QueryShardContext.java

@@ -105,6 +105,7 @@ public class QueryShardContext extends QueryRewriteContext {
         this.allowUnmappedFields = indexSettings.isDefaultAllowUnmappedFields();
         this.indicesQueriesRegistry = indicesQueriesRegistry;
         this.percolatorQueryCache = percolatorQueryCache;
+        this.nestedScope = new NestedScope();
     }
 
     public QueryShardContext(QueryShardContext source) {
@@ -113,6 +114,7 @@ public class QueryShardContext extends QueryRewriteContext {
     }
 
 
+    @Override
     public QueryShardContext clone() {
         return new QueryShardContext(indexSettings, bitsetFilterCache, indexFieldDataService, mapperService, similarityService, scriptService, indicesQueriesRegistry, percolatorQueryCache);
     }

core/src/main/java/org/elasticsearch/search/sort/SortBuilder.java

@@ -54,7 +54,9 @@ public abstract class SortBuilder<T extends SortBuilder<?>> implements ToXConten
             }
             Query innerDocumentsQuery;
             if (nestedFilter != null) {
-                innerDocumentsQuery = nestedFilter.toFilter(context);
+                context.nestedScope().nextLevel(nestedObjectMapper);
+                innerDocumentsQuery = QueryBuilder.rewriteQuery(nestedFilter, context).toFilter(context);
+                context.nestedScope().previousLevel();
             } else {
                 innerDocumentsQuery = nestedObjectMapper.nestedTypeFilter();
             }

core/src/test/java/org/elasticsearch/search/sort/AbstractSortTestCase.java

@@ -242,7 +242,7 @@ public abstract class AbstractSortTestCase<T extends SortBuilder<T> & SortBuilde
             }
         });
         return new QueryShardContext(idxSettings, bitsetFilterCache, ifds, null, null, scriptService,
-                indicesQueriesRegistry) {
+                indicesQueriesRegistry, null) {
             @Override
             public MappedFieldType fieldMapper(String name) {
                 return provideMappedFieldType(name);