PushPull breaks all history

Rhino
1
  1. Make a box
  2. Mirror that box
  3. PushPull a side of the box

I know that history in Rhino is ridiculusly fragile, but this is extreme.

2

I might be able to fix this. The corresponding issue is here. Your right that this is because history is fragile. It’s not so much that Mirror is a problem but other commands like dimensions or DupBorder which reference specific components cannot reliably resolve changes to polysurface structure.

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3

RH-81144 is fixed in WIP

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