IDEA-96147 DirDiff doesn't update diff panel on enter

(cherry picked from commit 0964928178375a73c5b60dbdf88db9697f98a99c)

platform/vcs-impl/src/com/intellij/openapi/diff/impl/dir/DirDiffTableModel.java

@@ -156,6 +156,7 @@ public class DirDiffTableModel extends AbstractTableModel implements DirDiffMode
 
   public void updateFromUI() {
     getSettings().setFilter(myPanel.getFilter());
+    myPanel.update(false);
   }
 
   public boolean isOperationsEnabled() {

platform/vcs-impl/src/com/intellij/openapi/diff/impl/dir/actions/DirDiffAction.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2011 JetBrains s.r.o.
+ * Copyright 2000-2012 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.
@@ -53,6 +53,7 @@ public abstract class DirDiffAction extends ToggleAction implements ShortcutProv
         }
       }
     }
+    getModel().updateFromUI();
   }
 
   protected boolean isFullReload() {