Custom normals are changed after triangulation.
Closed, ArchivedPublic

Description

  1. Open attached file
  2. Press Ctrl+T
  3. See that one normal is changed

Details

Type
Bug

Not only the custom normals are changed, but also the face normal calculated in OpenGL. This is the behavior of the current OpenGL version on face with shad_smooth.
But this will change in version 2.8 of the blender that will have a newer version of OpenGL :)