Hey guys, here is a problem:
Initial state looks like so:

And project structure:

Bone "right(x_flipped)" is flipped by X...
And now we just try to rotate "base" bone by 30 degrees clockwise. In this moment I expect that right bone will participate like an always, but just has flipped slots (I found this is the only way to flip images). But, flipped bone inherit rotation without paying attention that it is flipped. Just look at it:

Actually, I'm not sure this is a bug, but I think it's a little strange behavior.
BTW, is there some other way to flip images?
Thanks.
Check project in attachments.