Operating system: Linux-5.3.0-29-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: Quadro GP100/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.48.02
Broken: version: 2.83 (sub 2), branch: master, commit date: 2020-02-14 05:14, hash: rBf621f03e4b25
Short description of error
When making multiple objects that share the same object data single user, editing & selecting the geometry in edit mode becomes impossible and it has a tendency to break the mesh.
Exact steps for others to reproduce the error
- Create a sphere
- Alt + D duplicate the sphere multiple times
- Select all spheres and use the operator "Make Single User" -> "Object Data"
- Try selecting & editing a sphere in edit mode
- Exit out of edit mode