Seam allowance issue on curved path that has been flipped by a line
In the example that follows, the seam allowance along a flipped curved path has a strange behaviour.
The seam allowance on the corresponding original curved path is fine.
I'm on my Ubuntu 2020.10, using the latest commit (e9f9fb0f) on the develop branch.
Here is the val file (no need for a vit file): test_seamallowance.val
In the screenshot, I pointed 3 areas with red arrows. One is very obvious, the other are more subtle and can be better seen when zooming in. Especially moving the upper handle of the Point A32 will change radically the wrong area (moving a little bit make it go away or make it worse).