Wrong usage of I18n & missing translations

[tangopium]

There is currently an issue in the teams edit view (that might actually affect other parts of the system too):

First of all, there is a translation missing (which is just a minor issue): In this line I currently (v1.7.2) get the error Translation missing: de.teams.fields.locale.options and there are actually no options here.

The second, more severe issue is the usage of the hash returned from I18n.t here and here (where you try to modify the hash).

This throws the error can't modify frozen Hash. The issue is known and described in detail here. In summary I18n returns a frozen hash since 3.0. The solution should be passing t("locale.locales").clone(freeze: false).

I didn't review the test coverage of BulletTrain, but shouldn't those kind of issue pop up automatically?

[tangopium]

Actually, when I pass the t("locale.locales").clone(freeze: false), this results in
another issue

[jagthedrummer]

@tangopium thanks for the bug report but I'm having trouble following, and the teams edit view is working as expected for me. Can you please provide reproduction details and a full stack trace of whatever error you're seeing? It's hard to figure out what you're talking about with just links to various lines of code but without any larger context as to how you're getting there.