IDEA-168209 Quick doc window is not closed from the first attempt

platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupManagerImpl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2016 JetBrains s.r.o.
+ * Copyright 2000-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -173,7 +173,7 @@ public class LookupManagerImpl extends LookupManager {
       @Override
       public void currentItemChanged(LookupEvent event) {
         alarm.cancelAllRequests();
-        if (settings.AUTO_POPUP_JAVADOC_INFO) {
+        if (settings.AUTO_POPUP_JAVADOC_INFO && DocumentationManager.getInstance(myProject).getDocInfoHint() == null) {
           alarm.addRequest(request, settings.JAVADOC_INFO_DELAY);
         }
       }