After pasting, Ctrl+z deletes character by character instead of undoing the whole string

[alexhinz]

Environment

Windows build number: 10.0.19569.1000
Windows Terminal version: 0.9.433.0

Steps to reproduce

1. Copy some text to clipboard from any source (Terminal, Notepad, browser, etc.), e.g. "hello world"
2. Open a Windows PowerShell tab or PowerShell Core tab in Terminal.
3. Paste the text by any usual means: right click, Ctrl+Shift+v, Ctrl+v (if configured in settings json).
4. Press Ctrl+z. Observe, repeat.

Expected behavior

With a single Ctrl+z press, the whole "hello world" string should be deleted. This behavior matches PowerShell when not running inside Terminal.

Actual behavior

Each press of Ctrl+z deletes a single letter/character, as if by pressing Backspace.

In contrast, I see that if I use the up/down arrows to insert strings of text, Ctrl+z correctly deletes the whole string, which matches the behavior of PowerShell outside of Terminal.

My PSReadline version is 2.0.0, according to Get-Module PSReadline.

[DHowett-MSFT]

Unfortunately, this is because PSReadline is handling ^V itself in the traditional console case. When Terminal handles it, it inputs the pasted string a single character at a time like all other terminals.

This will be fixed when we have bracketed paste mode[1] and PSReadline supports asking for it.

/dup #395

[1]: "Bracketed paste" is a terminal feature whereby a terminal can say "I am beginning/ending a paste" so that a remote shell can do the right thing with user-pasted content that it received char-by-char.

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!