Un-snapping Terminal Placing Cursor in Middle of Previous Command's Output

[joshuacookdev]

Environment

Windows build number: 10.0.19041.0
Windows Terminal version (if applicable): 1.1.2021.0

Any other software?
* PowerShell Core 7 (also reproducible in other shells)

Steps to reproduce

1. Snap terminal to the right
2. (In PS7) Type a command that fills the screen (I used dotnet new --list because I'm checking my installed templates)
   
3. Unsnap the pane (whether by dragging, maximizing, or double tapping title bar)
4. Type new command (I used cd to a path I was working within)

Expected behavior

Terminal should display the new input text at the > mark (seen here in stock PowerShell 7).

Actual behavior

Terminal is currently displaying the text in the middle of the previous commands output.

I searched for snap and cursor and couldn't find this explicitly (I found a couple of related issues) - if duplicated or in progress please feel free to delete.

[joshuacookdev]

Looking at it now, it looks like it might be related to #3088 but I don't think it is explicitly the same, since the behavior isn't reproducible in conhost proper.

[zadjii-msft]

Yea, there's definitely still some sort of intermittent bug with line wrapping. I'm not sure how we get into that state, but it's fairly hard to pin down.

Generally, I'm tracking all these types of bugs over in #5800, so I'll link this report up with those. Thanks!

[SpiridonovAlexMoeDelo]

Hi, folks!

Not sure if my issue related to this one but I have next definitely unexpected behavior:

Requirements:

1. Terminal have to be full of some text (not reproduced on empty terminal)

What to do:

1. Get some command from history and try to edit command

What expects:

1. Just editing without any surprises

What happens:

1. Suddenly text of command are cloned

100% reproducing as shown on attached gif in very common using scenario.

[zadjii-msft]

note to self, from #11745:

• open terminal
• dotnet new blazorwasm --help
• maximize

is a 100% repro