System Information
Operating system: Mac OS Mojave 10.14.6
Graphics card: AMD Radeon Pro Vega 20 OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.21

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: rB77d23b0bd76f
Worked: (optional)

Short description of error
Cannot de-select selected loops with emulate 3 mouse button on. Can select loop cuts by double clicking on them with the lmb. But When I hold shift and double click the lmb it doesn't work. Then when I try the hold shift+ alt double lmb, still nothing happens as long as I have emulate 3 mouse button on.

My preference for a fix is just shift double click lmb. Not the shift + alt. that's not comfortable for workflow.

Exact steps for others to reproduce the error
create a mesh with multiple loops. then select a loop by double clicking lmb. make sure emulate 3 mouse button is on. Then try to deselect the loop by by simply holding shift and double clicking lmb. And then try to deselect by pressing shift+alt Double click lmb
[Based on the default startup or an attached .blend file (as simple as possible)]