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Markdown viewer long lines cannot be fully copied to clipboard #10016

@neongrau

Description

@neongrau

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Describe the bug

Had an md file with rather large table formatted lines.
Had a line (Rendered mode) selected and tried to copy & paste.

Paste comes short (only 236 chars) randomly cut off.
Works fine in Raw mode. But raw mode is a bit clumsy with the line number block on the left preventing line selection.

To reproduce

  • Create a table markup md file with very long lines.
  • Open the file (Rendered mode)
  • select and copy
  • paste somewhere
  • see text is clipped

Expected behavior

all the selected text should have been copied

Screenshots, videos, and logs

No response

Operating system (OS)

macOS

Operating system and version

macOS Tahoe 26.4

Shell Version

No response

Current Warp version

No response

Regression

No, this bug or issue has existed throughout my experience using Warp

Recent working Warp date

No response

Additional context

No response

Does this block you from using Warp daily?

No

Is this an issue only in Warp?

Yes, I confirmed that this only happens in Warp, not other terminals.

Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e

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    area:editor-notebooksEditors, notebooks, markdown rendering, LSP, and code display.bugSomething isn't working.os:macmacOS-specific behavior, regressions, or requests.ready-to-implementThe issue is ready for implementation work.repro:mediumThe report suggests a plausible repro path, but some uncertainty remains.triagedIssue has received an initial automated triage pass.

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