Multi cursor text block selection with middle mouse click doesn't work the first time

[belaw]

Issue Type: Bug

Action

While holding shift, click the middle mouse button at the desired position to select a text block.

Expected Result

Text block from the current position of the cursor to the position you clicked is created (same as when you click while holding shift+alt).

Actual result

The cursor jumps to the position you clicked and no selection is created.
Keeping shift pressed and middle clicking at a another position then works as expected.

VS Code version: Code 1.38.0 (3db7e09, 2019-09-03T21:49:13.459Z)
OS version: Windows_NT x64 10.0.18362

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz (4 x 3292)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	15.91GB (4.72GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (19)

Extension	Author (truncated)	Version
vscode-markdownlint	Dav	0.30.2
vscode-eslint	dba	1.9.1
xml	Dot	2.5.0
EditorConfig	Edi	0.13.0
tslint	eg2	1.0.44
beautify	Hoo	1.5.0
plantuml	jeb	2.12.0
svn-scm	joh	1.54.4
mssql	ms-	1.6.0
python	ms-	2019.9.34474
powershell	ms-	2019.5.0
vetur	oct	0.22.2
smartpaste	reb	0.0.3
vscode-yaml	red	0.5.2
hunspell	str	0.0.2
plsql-language	xyz	1.8.2
cursor-align	yo1	1.0.4
markdown-all-in-one	yzh	2.4.2
html-css-class-completion	Zig	1.19.0

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Middle mouse click in scroll bar pastes text in file area (Linux) (#67671)