Python docstring auto-inserts triple quotes at both cursors in a file during Live Share

[aely-aronoff]

Issue Type: Bug

Hello, hello. Firstly, let me say I really love VS Code and Live Share and use it all the time with my team. Fantastic work!

There is a bug we've noticed and I'm not sure if it's coming from Live Share or the Python extension but here's what happens:

• On host machine, when I type the opening triple quotes of a docstring (""") it automatically inserts the closing triple quotes, which is desired behavior.
• When I'm on Live Share with another dev on a remote machine, if they type an opening triple quote it automatically inserts the closing triple quotes at my cursor instead of at their cursor.

This is a little annoying since any time the other dev starts a docstring I suddenly have three quotes appear wherever I'm writing code. Note that this only happens when we're both editing the same file - it doesn't happen if we're editing different files. It also doesn't happen when the other dev starts a regular string with quote (") or apostrophe ('). Only with the docstrings.

I haven't tested this on other pairs of computers, but my computer is a Windows machine and the other dev is on a MacBook Pro, MacOS v11.1.

VS Code version: Code 1.57.1 (507ce72, 2021-06-17T13:28:07.755Z)
OS version: Windows_NT x64 10.0.19042
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-10700F CPU @ 2.90GHz (16 x 2904)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.92GB (18.50GB free)
Process Argv	--crash-reporter-id 823b39f3-cbe6-4f28-9268-d408bb416063
Screen Reader	no
VM	0%

Extensions (10)

Extension	Author (truncated)	Version
vscode-sqlite	ale	0.13.0
go	gol	0.26.0
vscode-edit-csv	jan	0.6.0
solidity	Jua	0.0.124
python	ms-	2021.6.944021595
vscode-pylance	ms-	2021.6.3
jupyter	ms-	2021.6.999662501
remote-ssh	ms-	0.65.7
remote-ssh-edit	ms-	0.65.7
vsliveshare	ms-	1.0.4498

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383cf:30185419
pythonvspyt678:30270856
pythonvspyt602:30300191
vspor879:30202332
vspor708:30202333
vspor363:30204092
vstes627:30244334
pythonvspyt639:30300192
pythontb:30283811
pythonvspyt551cf:30311713
vspre833:30321513
pythonptprofiler:30281270
vshan820:30294714
pythondataviewer:30285071
vscus158:30321503
pythonvsuse255:30323308
vscorehov:30309549
vscod805cf:30301675
binariesv615:30325510

[sbatten]

This is possibly caused by extension, assigning to @alexdima to determine if its possibly us.

[alexdima]

Moved to microsoft/live-share#4353