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

• Log in to https://meta.wikimedia.beta.wmflabs.org .
• Set your gender in the preferences to "she" (feminine).
• Set your UI language to French.
• Create an event page and make yourself the organizer.
• Open the event page.

What happens?:

• The message about the event name says "Vous êtes organisateur".

What should have happened instead?:

• The message about the event name should say "Vous êtes organisatrice".

Software version (skip for WMF-hosted wikis like Wikipedia):
https://meta.wikimedia.beta.wmflabs.org on 2022-08-15

Other information (browser name/version, screenshots, etc.):
The French translation of the message uses {{GENDER:|}}, but it's not parsed in the actual UI.