Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.59
Broken: version: 2.83 (sub 14), branch: master, commit date: 2020-04-23 08:25, hash: rB8dedbb174783
Worked: (newest version of Blender that worked as expected)
Short description of error
When I subdivide between zero radius vertex and non-zero on nurbs-curve, I get zero radius instead average radius.
Exact steps for others to reproduce the error
Subdivide nurbs curve from file.