Impact: On Polish and French Wikipedia, content renders inconsistently based on language.

Steps to replicate the issue (include links if applicable):

• Set global language to cs (or visit https://cs.m.wikipedia.org/wiki/Trubkonos%C3%AD)
• In Special:preferences set your language to en
• Edit [[MediaWiki:Wikimedia-styles-exclude]] and set text to hatnote|infobox
• Visit a page with infobox / hatnote (e.g. https://cs.m.wikipedia.org/wiki/Trubkonos%C3%AD)

What happens?:

• Styles apply differently e.g. https://cs.m.wikipedia.org/wiki/Trubkonos%C3%AD?uselang=en looks different from https://cs.m.wikipedia.org/wiki/Trubkonos%C3%AD?uselang=cs

What should have happened instead?:

• Styles should not apply - the exclude list is only applying if the language is cs.

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):