Please patch chest duplication bugs

Please patch this redstone piston chest duplication bug. It is really being troublesome on multiplayer worlds such as those hosted on realms. We hope Mojang treats these exploits more seriously as it interrupts game balance. Additionally, Mojang should do more to prevent cheat clients from being able to join a realms server. It is well known there are multiple hack apps on the Google Play store that allow players to cheat within a realm. Why is Mojang and Microsoft not doing more to have these apps blocked from accessing realms?

Screen capture of the redstone exploit circuit. This allows players to duplicate any item that can be placed within a chest.