In 1.1.9, I made an experimental attempt to fix the app list entry duplication bug. I am not sure is it effective but at least my new approach should improve aap2sd and potential database corruption a bit. In addition, for how to fix app icon duplication problem, please follow this post
(1) Updated core SDK
(2) Swipe to close now working in App List.
(1) Fixed duplicate app icon
(2) Fixed app2sd