Operating system: Darwin-17.2.0-x86_64-i386-64bit 64 Bits
Graphics card: NVIDIA GeForce GTX 1050 Ti OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-10.27.6 3126.96.36.199.20.109
Broken: version: 2.83 (sub 2), branch: master, commit date: 2020-01-30 11:04, hash: rB2142288eae73
Short description of error
When you have autokeying turned on for LocRotScale, then disable a driver (for say a shape key) and then manually tweak the value. Blender will key this change in the driver editor.
Exact steps for others to reproduce the error
-turn on autokey (keying set LocRotScale will do)
-create a property on the default cube
-copy as new driver
-create a shape key
-paste this driver to this shape key
-then disable the curve for this driver in the driver editor (check box)
-manually tweak the driver value and this will be keyed in the driver editor.