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Duplicated of #52792? Shouldn't it have already been fixed by #52245? /cc @xabbuh

Can you please check which ICU version you have?

I have this version:

uconv v2.1 ICU 72.1

Thanks for making us aware of this @toxicity1985. I suggest we skip these five tests with ICU 72.1 too (see #53335).

It seems there is a bug until the most recent ICU version (74), so it may concern all ICU versions < 74.2
(almost the same we had with emojis)

ICU 74.2 release notes:

Important: DateFormat.getInstanceForSkeleton() and the DateTimePatternGenerator sometimes used the wrong patterns because they failed to use/inherit certain data. (ICU-22575 — CLDR 44 had removed some redundant data that ICU relied on.)
--> ICU 74 : https://icu.unicode.org/download/74

Bug issue: https://bugzilla.mozilla.org/show_bug.cgi?id=1864612#c8

As it may concern a lot of users, should we (can we) create a temporary patch ?

cc @xabbuh

For me, tests pass locally with ICU 73.1. So not sure if that's the same issue.

@xabbuh ok! I’ll investigate tomorrow and see if there is something here that impact us