[Bug] Markdown (.md) files do not show diff content in review panel (only summary card)

What version of the Codex App are you using (From “About Codex” dialog)?

26.415.21839 (1763)

What subscription do you have?

Pro 200$

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

What issue are you seeing?

When reviewing changes in Codex app, Markdown (.md) files do not show the diff content.

Instead of showing line-by-line changes, it only displays a summary card like:

(+2 -1)

No diff details are visible.

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What is the expected behavior?

The review panel should display the full diff (line-by-line changes) for Markdown files, same as other file types like .php.

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What is actually happening?

• .md files: only summary card shown, no diff content
• .php files: diff works correctly and shows full changes

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Steps to reproduce

1. Open a repository in Codex
2. Modify a .md file
3. Open Review panel
4. Observe that only summary (+X -Y) is shown, no diff content

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Additional context

• This issue seems specific to Markdown files
• Other file types (e.g. .php) display diffs normally
• git diff shows correct changes, so the issue appears to be in Codex UI/rendering

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What steps can reproduce the bug?

Uploaded thread: 019d9a70-2d08-7e02-996c-317ab6a9732c

What is the expected behavior?

_No response_

Additional information

_No response_