[Problem] PartDesign: Broken model using AdditivePipe Feature

Is there an existing issue for this?

• I have searched the existing issues

Version

0.20 (Release)

Full version info

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29177 +426 (Git)
Build type: Release
Branch: (HEAD detached from 0.20.2)
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: German/Germany (de_DE)
Installed mods: 
  * CfdOF 1.21.7

Subproject(s) affected?

PartDesign

Problem description

The issue was posted, reproduced and discussed here: https://forum.freecad.org/viewtopic.php?t=79204

A simple pipe is formed by using the "Additive Pipe" feature in the PartDesign workbench. The feature creates an invalid shape if certain dimensions are set to specific values. It works correctly with some, produces this error with others. There is nothing to do for the user but "hope" that the dimensions he/she needs are leading to a valid model. Otherwise, she/he needs to build the separate parts of the pipe with inidividual extrusions.

Steps to reproduce:

1. download and open https://forum.freecad.org/download/file.php?id=228576
2. edit "Sketch", alter Contraint 8 from 8 m to 4 m. Finish editing. -> Recompute failed! Please check report view.

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct