Inline math with units often fails to render inside blockquotes

[lentkt]

Description

In Wiki.js, when I write inline math inside a blockquote (>), some formulas with units (like D, mm) show up as raw unrendered text in the published page. However, the same formulas work correctly outside blockquotes, or when I add a small change (like a trailing period).

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Steps to reproduce

Create a Wiki.js page containing the following blockquote:

> Test cases:
>
> 1. $(-6.00)+(+0.50)=-5.50\mathrm{D}$   → fails (shows raw text)
> 2. $(-6.00)+(+0.50)=-5.50\text{D}$      → fails (shows raw text, sometimes broken)
> 3. $(-6.00)+(+0.50)=-5.50\mathrm D$     → works
> 4. $(-6.00)+(+0.50)=-5.50\mathrm{D}$.   → works (added period after $)
> 5. $7.65\text{mm}$                      → fails
> 6. $7.65\mathrm{mm}$                    → fails

Expected result: All six lines should render as mathematical formulas with upright units.

Actual result (published view):

· Lines 1, 2, 5, and 6 are displayed as plain text (e.g., $(-6.00)+(+0.50)=-5.50\mathrm{D}$).
· Lines 3 and 4 render correctly.

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Additional observations

· The problem is consistently reproducible inside blockquotes. Outside blockquotes, the same formulas work fine.
· Using \mathrm D (without curly braces) always works, but this is not a natural fix for multi‑letter units like mm.
· Adding a punctuation mark (like . or ,) right after the closing $ also makes it work, but that changes the document content.

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Impact

This affects any page that contains technical or medical formulas with units inside blockquotes (e.g., quoting a prescription or test result). The published page becomes unreadable for end users.

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Request

Please investigate why inline math inside blockquotes is not properly recognised, especially when it ends right after a command with curly braces ({...}). It would be great if the parser could handle these cases without requiring extra punctuation or special syntax.

[vaagee]

It's a known issue. There's a fix here: #8000