Mirror Key Randomly gets assigned

[Paradigm 29]

I've been screwing around with a scene for a few hours now and I'm starting to get pretty mad at Algodoo.
I have a motor assigned to the left and right arrow keys. Sometimes when I undo the simulation I find that I have to undo a few mirrors. That's pretty strange since I didn't assign any mirror keys. I check and sure enough some objects in the scene are bound to mirror keys.

I clear the keys and go on with my business only to have the same crap happen again minutes later. I haven't found a way to reproduce it yet and It's not a bug that generates errors in the console, but it is very annoying.

[imaman]

You wanna know whats annyoing?
Almost every time i delete a fixate my whole contraption fucks up.

[Joel]

I seem to have some problems reproducing the bug, if you find any common denominator for the scenes and what you are doing when this happens, it would help me out alot in fixing this.

[emilk]

This has probably been fixed in 1.8.3