Text copied from cell includes nesting bars ("|")

[bjmckenz]

Description

All TUI responses are part of a collapsible cell. However, when text is selected from the cell (for example a command to be executed or text to be added to a file), the copied text includes leading bars ("|") on each line.

This makes the pasted text invalid; the bars must be removed manually.

Steps to reproduce

1. Execute a command in TUI
2. Select at least one complete line from a response cell
3. click Copy (Mac: Cmd-C)
4. Paste text in an editor window
5. Observe "| " at front of every line after a copied newline

Expected behavior

1. Copied text should have any leading "|" and following spaces removed before copying to the clipboard (This should apply to all copied lines)
2. Line breaks should be preserved

Actual behavior

Pasted text will include "| " for each new line

Environment

• OS: Mac OS 26.31a (Tahoe)
• DeepSeek CLI version: 0.8.17
• Model: auto (deepseek 4)
• Shell: zsh

Logs or screenshots

[bjmckenz]

Is there a use case in which the glyphs are useful?

[douglarek]

Similar to #1212, previous PRs did not resolve this issue.

[bjmckenz]

thanks for referencing.

[douglarek]

thanks for referencing.

Perhaps I misled you. Considering the original issue has been closed, you can reopen this one.

[Oliver-ZPLiu]

Similar to #1212, previous PRs did not resolve this issue.

我的 PR #1239 有解决，等待合并ing。