am a7a6a3a5: Fix issues with Local

* commit 'a7a6a3a5efaf62cdd5d562a9141678671952d27d':
  Fix issues with Local
diff --git a/src/com/android/gallery3d/filtershow/FilterShowActivity.java b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
index 27b5fb9..2986f96 100644
--- a/src/com/android/gallery3d/filtershow/FilterShowActivity.java
+++ b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
@@ -736,6 +736,7 @@
                 int position = adapter.undo();
                 mMasterImage.onHistoryItemClick(position);
                 mImageShow.showToast("Undo");
+                backToMain();
                 invalidateViews();
                 return true;
             }