fix test

Author: original-brownbear

server/src/internalClusterTest/java/org/elasticsearch/search/fieldcaps/FieldCapabilitiesIT.java

@@ -718,7 +718,7 @@ public void testCancel() throws Exception {
                     "clear resources",
                     TransportFieldCapabilitiesAction.class.getCanonicalName(),
                     Level.TRACE,
-                    "clear index responses on cancellation"
+                    "clear index responses on cancellation submitted"
                 )
             );
             BlockingOnRewriteQueryBuilder.blockOnRewrite();

server/src/main/java/org/elasticsearch/action/fieldcaps/TransportFieldCapabilitiesAction.java

@@ -234,6 +234,7 @@ private void doExecuteForked(
         fieldCapTask.addListener(() -> {
             if (finishedOrCancelled.compareAndSet(false, true)) {
                 singleThreadedExecutor.execute(releaseResourcesOnCancel);
+                LOGGER.trace("clear index responses on cancellation submitted");
             }
         });
         try (RefCountingRunnable refs = new RefCountingRunnable(() -> {