Right click menu closes on right click release

[cmsolomon]

Issue Type: Bug

I am using VS Code on ubuntu 20.04.1LTS 5.8.0-43-generic, x86_64.
VS Code is installed using deb file, not snap.
I am developing in C++ (linux-gcc-arm).

Problem:
In the editor window, when I right click (to find all references, or whatever), the right click menu is only shown for as long as I hold the right button down - releasing the button behaves as if I had left clicked whichever menu item the pointer is currently over.

I have confirmed behaviour is normal outside VS Code.

I have read of a similar issues with GitLense, so I have disabled that extension, which had no effect.

VS Code version: Code 1.53.2 (622cb03, 2021-02-11T11:48:44.518Z)
OS version: Linux x64 5.8.0-43-generic

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-10810U CPU @ 1.10GHz (12 x 3291)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: disabled_off opengl: enabled_on protected_video_decode: unavailable_off rasterization: disabled_software skia_renderer: enabled_on video_decode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	1, 1, 1
Memory (System)	30.97GB (14.66GB free)
Process Argv	--no-sandbox --unity-launch --crash-reporter-id b83f6678-03cd-4f96-a387-0f2fce063f0e
Screen Reader	no
VM	0%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11

Extensions (25)

Extension	Author (truncated)	Version
bracket-pair-colorizer-2	Coe	0.2.0
systemd-unit-file	coo	1.0.6
vscode-great-icons	emm	2.1.64
shell-format	fox	7.0.1
gc-excelviewer	Gra	3.0.41
vscode-back-forward-button	gri	0.1.4
easy-icons	jam	0.3.1
theme-dark-plus-contrast	k3a	0.1.101
ruby-rubocop	mis	0.8.5
prettify-json	moh	0.0.3
vscode-docker	ms-	1.9.1
python	ms-	2021.1.502429796
jupyter	ms-	2020.12.414227025
remote-containers	ms-	0.158.0
cpptools	ms-	1.2.0
deepdark-material	Nim	3.3.0
ruby	reb	0.28.1
c-cpp-definition-generator	rei	0.0.2
code-spell-checker	str	1.10.2
sort-lines	Tyr	1.9.0
vscode-icons	vsc	11.1.0
debug	web	0.25.0
vscode-ruby	win	0.28.0
linkerscript	Zix	1.0.1
vscode-proto3	zxh	0.5.3

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492cf:30256860
vstry914:30256638
pythonvsdeb440:30248342
pythonvsded773:30248341
pythonvspyt875:30251590

[jayschwa]

This might be a duplicate of #113175.

[cmsolomon]

Yes, it looks like a duplicate - should I just close this one or is there some way to mark it as a duplicate?