Merge vertex when intersect geometry

If I insert some geometry with symmetry activated…
In case I move them in the way they can intersect one each other, its vertex (at the contact area) become merged.
Is it the correct behavior? A bug? or some option activated?

Cheers!

Yes this is the correct behaviour.

The primitive is validated, so it moves the vertex independently: every vertices that is on the left will be considered on the left.
It doesn’t differentiate between the 2 disconnected shapes.

ps: The behaviour I explained above happens when you move the parts * apart * when it is already intersecting. (not sure if that’s what you were trying to show with your screenshots)

Yes it is exactly what you said. Thank you for your time. Nomad is awesome! Great job!