That's also the case with any RTL languages you can use or force to use :

• https://fr.wikipedia.org/wiki/Discussion_utilisateur:Trizek%20(WMF)?uselang=ar
• https://fr.wikipedia.org/wiki/Discussion_utilisateur:Trizek%20(WMF)?uselang=fa
• https://fr.wikipedia.org/wiki/Discussion_utilisateur:Trizek%20(WMF)?uselang=he

It also appears correctly translated in the MediaWiki namespace in the Hebrew Wikipedia: https://he.wikipedia.org/wiki/MediaWiki:Wikimedia-flow-terms-of-use-edit .

That link displays an English message for me, as does https://he.wikipedia.org/wiki/MediaWiki:Flow-terms-of-use-edit .

Th first thing that's happening here is that the WikimediaMessages extension overrides the flow-terms-of-use-edit message with the wikimedia-flow-terms-of-use-edit message. The latter message is only translated in 19 languages in the .json files, and he/ar/fa are not among them. However, as you point out, translatewiki has had a Hebrew translation for this message since 2014. So it looks like there's some sort of export problem with translatewiki.

First I was suspecting export threshold, but it looks like MediaWiki extensions don't have any.

Nothing else jumps out to me, other than the fact that there is a suspiciously high amount of fuzzy translations. @Amire80 any idea why this is the case?

I'll try full export to see if it has just slipped through - maybe these were moved to another file without doing a full export.

In T179615#3796230, @Nikerabbit wrote:

Nothing else jumps out to me, other than the fact that there is a suspiciously high amount of fuzzy translations. @Amire80 any idea why this is the case?

No idea.

Change 394054 had a related patch set uploaded (by L10n-bot; owner: L10n-bot):
[mediawiki/extensions/WikimediaMessages@master] Localisation updates from https://translatewiki.net.

https://gerrit.wikimedia.org/r/394054

Change 394054 merged by L10n-bot:
[mediawiki/extensions/WikimediaMessages@master] Localisation updates from https://translatewiki.net.

https://gerrit.wikimedia.org/r/394054