Editor Minimap is not shown

[abhi-gite]

Issue Type: Bug

Minimap is not shown
reproduced after updating to latest
happens to all the tabs after some browsing of tabs
view-> Show Minimap, disable and enable this fixes minimap only for current tab

VS Code version: Code 1.53.1 (5d424b8, 2021-02-08T23:30:54.166Z)
OS version: Linux x64 5.8.0-43-generic

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz (4 x 3367)
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)	31.30GB (7.95GB free)
Process Argv	--no-sandbox --unity-launch --crash-reporter-id d5002261-681b-4499-bb88-faf238d8f818
Screen Reader	no
VM	17%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11

Extensions (31)

Extension	Author (truncated)	Version
better-comments	aar	2.1.0
vscode-css-formatter	aes	1.0.1
proto3-nav	bri	0.2.2
vscode-markdownlint	Dav	0.38.0
vscode-eslint	dba	2.1.14
xml	Dot	2.5.1
gitlens	eam	11.2.1
html-to-javascript-string	evi	0.0.6
shell-format	fox	7.0.1
vscode-pull-request-github	Git	0.23.0
go	gol	0.22.1
beautify	Hoo	1.5.0
rest-client	hum	0.24.4
vscode-clang	mit	0.2.3
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
vscode-typescript-next	ms-	4.3.20210210
nodejs-docs	Muk	0.2.2
vscode-gn	npc	1.1.0
vscode-protolint	ple	0.5.1
vscode-yaml	red	0.15.0
bash-beautify	sha	0.1.1
code-spell-checker	str	1.10.2
opa	tsa	0.7.0
edk2-vscode	wal	1.0.4
clang-format	xav	1.9.0
html-css-class-completion	Zig	1.20.0
vscode-proto3	zxh	0.5.3

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383cf:30185419
pythonvspyt617cf:30253240
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492:30211401
pythonvsdeb440:30248342
pythonvsded773:30248341
pythonvspyt600cf:30251589

[gjsjohnmurray]

/duplicate of #116060