Keep Memory Blocks with Custom Controls Connected to Type Def

[jkirschner]

For some application, I find myself configuring memory blocks for the storage of custom controls which I am maintaining with a type def.  Type definitions normally have the advantage that changing them will update them everywhere they are used.

Unfortunately, when I change a type def control for which a memory block has been configured, the memory block does not update this, and my code breaks.  It appears that the memory block disconnects the control from its type def when configured.  It would be nice if the memory block was reconfigured - as this is what I would expect to happen with a type def control.