System Information
Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92
Blender Version
Broken: version: 2.90 (sub 0), branch: master, commit date: 2020-05-10 13:42, hash: rB51ac411ce80c
Worked: (newest version of Blender that worked as expected)
Short description of error
transform orientation always uses global. Ignores any other setting (local, normal, gimbal etc)
Exact steps for others to reproduce the error
create cube, rotate it a bit, change to local transform orientation, rotate along z, it still uses global co-ordinates.