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Zero area meshes lacking an outline (even if selected)
Confirmed, NormalPublic

Description

System Information
Operating system: Linux-5.10.12-200.fc33.x86_64-x86_64-with-fedora-33-Thirty_Three 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.45.01

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-09 22:38, hash: rB5bddfde217b1
Worked: 2.79

Short description of error
Zero area meshes lacking an outline (even if selected)

Exact steps for others to reproduce the error
This came up in a special case in T85461: Mesh. Skin modifier shows nothing in viewport, when mesh do not have root., reporting the general case here

  • Open file
  • Cube (scaled to zero in two axis) is selected but has no representation in the viewport (outline)
  • open the same file in 2.79 and observe the outline

This might very well be a Known Limitation, just bringing this up here so we have a task we can refrence if this comes up again.

Event Timeline

Idk if it is similar issue, but unselected plane do not visible from side when unselected despite outline is enabled.
Yes, it do not have thickness at one hand. At another it is better to see at least line in this case IMO.