MergeAllEdges - bizarre behaviour

Just observed with today’s build.
Before command:


After running the command:

After stretching side elements and joining all surfaces:

Is this reproducible? Can you post a 3dm file?

Yes it is. Happened in several files that were created in V7.
Sample attached.
MAE problem.3dm (5.1 MB)

Thanks, Piotr!
RH-86490 MergeAllEdges: Failure Case
-wim

Hi Wim
To be precise. It is not failing to produce correct result but is extending creases as a side-effect; so I would describe it.

Hi Piotr -

This is producing bad geometry.
-wim

Correct, I should be having the checker continuously on :-/