Ctrl + Z cancels other people's changes

[dsseng]

Product and Version [VS/VSCode]: 1.31.0
OS Version [macOS/Windows]: Ubuntu 18.04
Live Share Extension Version: v0.3.890
Target Platform or Language [e.g. Node.js]: TypeScript

Steps to Reproduce / Scenario:

1. Edit code with some other people
2. Ctrl + Z
3. The last edit ever has been cancelled, not last your edit.

[lukepighetti]

I'll just chime in and say that this is expected behavior for me personally. It lets me reverse a file that someone has been working on.

[dsseng]

@lukepighetti for me it's more expected if Ctrl + Z returns code I write, not that other coder write

[lukepighetti]

I'm pretty sure diffing in a way that would let you do a partial undo is non-trivial. Also, when I'm pair programming with someone I need to be able to undo stuff they write if I want to show them an alternative method. Otherwise I will be asking them to hit undo for me. Not good.

[hickeng]

Dup of #1439 and there's discussion there about trade-offs and expected usage patterns.

[daytonellwanger]

Closing this issue to keep discussion of this issue confined to 1439.