I have some comments on the Part design draft feature.
As simple example i created a box. I add a draft on the 4 faces on the sides.
Also a vertical edge as pull direction. I see know a choped off piramid(with a bigger angle...)
When i press ok it complains about not using the neutral plane however the preview works.
So the assumption works great. Could there changed something that if the preview works and the neutral plane is not changed that his assumtion is added as neutral plane?
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14709 (Git)
Build type: Release
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: Dutch/Netherlands (nl_NL)