Hi Brian,

> For example, if I were "stick framing" a tetrahedron with duplicate edges for the 4 triangular sides, would
> it no longer be possible to have two lines on top of each other?

That will still work fine. The situation that it would guard against is having the same one single object listed multiple times in the geometry database (not copies of the object, the same object reference listed multiple times) which would always be an error.

Previously it put up an assert dialog to warn about this happening but then still let it happen. A couple of betas ago release mode asserts were turned off though so it then became more difficult to know what was going wrong.

- Michael