[TxMt] Possible crisis with $TM_variables

[Chris Thomas]

> To much security = bad functionality.

To be clear, bad security == bad functionality. That hint is messing  
with the system at a low level, and it will break stuff, as you've  
discovered. Not to mention that it only catches a subset of this  
particular attack. The grief/benefit ratio is heavily on the side of  
"grief", the benefit is practically nil.

Chris