As was pointed out in a comment, the "reverse thrust" of the Beta range, which is used to slow the aircraft on landing and which certainly can do disastrous things if deployed inadvertently in-flight, is a matter of propeller angle and not the direction of rotation of the engine. If it is running, the turbine engine is going to turn one way and that way only; all sorts of things wouldn't work right to try to run it turning it backwards.
The place where a prop and engine might try to go backwards is with a shut-down engine and a feathered prop. If the engine isn't running, then the lubricating oil that normally keeps moving parts lubricated and cool, isn't being supplied, and it's important that there NOT be any movement. With the prop in the "feather" position, it's generating a slight force to turn the engine the "wrong" way, and on the system I'm familiar with, we had a "prop brake" that would hold the prop stationary at that point. If you took the blade angle out of feather, then the brake would allow the propeller to turn the "right" way -- as in a restart attempt.
So to directly answer the question as asked, yes you can find turboprop engines with a system to prevent them from rotating the wrong way. But the reason for this has to do with preventing unwanted (unlubricated) rotation after an in-flight shutdown, rather than anything related to reverse thrust.