Muted testParentFieldToNonExistingType test

src/test/java/org/elasticsearch/search/child/SimpleChildQuerySearchTests.java

@@ -2658,6 +2658,7 @@ public class SimpleChildQuerySearchTests extends ElasticsearchIntegrationTest {
     }
 
     @Test
+    @LuceneTestCase.AwaitsFix(bugUrl = "https://github.com/elasticsearch/elasticsearch/issues/9461")
     public void testParentFieldToNonExistingType() {
         assertAcked(prepareCreate("test").addMapping("parent").addMapping("child", "_parent", "type=parent2"));
         client().prepareIndex("test", "parent", "1").setSource("{}").get();