I've seen a couple requests for this, but always for specific cases. It seems like it's a more general problem.
Currently it seems to be impossible to tell the solver that a constraint should not flip the current orientation of lines. As it is, if I put equal dimension constraints on the placement of holes in a sketch, it's even odds that the solver will flip them completely outside when I resize anything.
Apparently the same thing happens with tangents. Same thing has happened with right angle constraints. It's insanely frustrating, and I've resorted to manually setting each dimensions a couple of times.