Opening the editor essentially deletes pasted content

[maxandron]

Description

Hello!

I believe this issue existed before the v1 releases as well.
If after pasting content (and seeing [Pasted ~11 lines]), I open the editor - the content in the editor shows the summary ([Pasted ~11 lines]).

There are two separate issues here:
a. I don't have any option to expand or edit pasted content
b. If I edit something else in the editor and close it, the pasted content summary becomes plain text of "[Pasted ~11 lines]" and does not expand to the pasted lines when sending the prompt.

Same thing is happening with images, though of course, the handling should be different

I'm happy to try taking a crack at it.

OpenCode version

v1.0.37

Steps to reproduce

1. Paste enough content for a summary to occur / paste an image
2. Open editor with -e
3. Save an close the editor
4. Send the prompt
5. Note that the LLM didn't receive the text/image

Screenshot and/or share link

Operating System

macOS 26.0.1

Terminal

tmux in ghostty

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Fix TUI paste editor regression - pasted text object not expanding in editor #3484: This describes the exact same problem - pasted text objects not expanding in the editor, causing content to be lost when using the editor integration

Feel free to ignore if none of these address your specific case.

[rekram1-node]

@maxandron sure PR welcome, for the image I dont know if it makes sense to have different behavior when it is opened in the editor but the paste definitely does, i guess if u opened in the editor u could edit the filepath or something? But then youd have to convert it back

The issue of mapping back the attachments is also a good callout tho