NOTE: This was flagged by new tests the web team is adding.
**Steps to replicate the issue** (include links if applicable):
* Visit https://de.wikipedia.org/wiki/Totalschaden_(Album)?useskin=vector-2022 in an incognito window in safe mode.
* Inspect network tab
**What happens?**:
The page requires an additional 10kb of render blocking CSS.
The entire Codex library appears to be loaded.
**What should have happened instead?**:
It appears FlaggedRevisions loads the codex-styles module. In Vector and Minerva we intentionally load the more limited codex-search-styles module so this means Codex's styles are being loaded twice on the same page and lots of unused CSS.
I suggest FlaggedRevisions loaded codex-search-styles for consistency with Minerva and Vector until the Design system team have implemented T335317.
**Software version** (skip for WMF-hosted wikis like Wikipedia):
**Other information** (browser name/version, screenshots, etc.):