IDEA-109380 Can't specify users in Git Log while indexing

plugins/git4idea/src/git4idea/history/wholeTree/UsersFilterAction.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2011 JetBrains s.r.o.
+ * Copyright 2000-2013 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.
@@ -211,7 +211,7 @@ public class UsersFilterAction extends BasePopupAction {
       .setTitle("Specify user names, comma separated")
       .setMovable(true)
       .setRequestFocus(true).setResizable(true);
-    mySelectOkAction = new AnAction() {
+    mySelectOkAction = new DumbAwareAction() {
       @Override
       public void actionPerformed(AnActionEvent e) {
         myPopup.closeOk(e.getInputEvent());