System Information
Operating system: win 10 64 bit
Graphics card: nvidia GTX 780

Blender Version
Broken: 2.80.75
Worked: (optional)

Short description of error

In a startup file I turn on proportional edit in object mode, then I go into edit mode and drag my 3d cursor somewhere (shift right mouse+drag), when I go back to object mode, proportional edit is turned off. This same issue happens in my other blend files except it's in reverse, dragging the 3d cursor in edit always turns on proportional edit in object mode.

Exact steps for others to reproduce the error

turn on proportional edit
change to edit mode
manually drag 3d cursor to a different location
change back to object mode

gif example
https://i.imgur.com/BiKqmVw.jpg