optimize imports on commit restored (IDEA-68447)

(cherry picked from commit bcbd495b5922060740192f77f08ce6e7d9e29095)

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/CommitChangeListDialog.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2011 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.
@@ -666,13 +666,19 @@ public class CommitChangeListDialog extends DialogWrapper implements CheckinProj
     };
 
     stopUpdate();
-    for(CheckinHandler handler: myHandlers) {
+    Runnable runnable = proceedRunnable;
+    for(final CheckinHandler handler: myHandlers) {
       if (handler instanceof CheckinMetaHandler) {
-        ((CheckinMetaHandler) handler).runCheckinHandlers(proceedRunnable);
-        return;
+        final Runnable previousRunnable = runnable;
+        runnable = new Runnable() {
+          @Override
+          public void run() {
+            ((CheckinMetaHandler)handler).runCheckinHandlers(previousRunnable);
+          }
+        };
       }
     }
-    proceedRunnable.run();
+    runnable.run();
   }
 
   protected void doOKAction() {