Comment 2 for bug 1502326

Doug, thanks for handling it. your investigation is correct.

I updated horizon language list manually in the past releases.
i18n team discussed the criteria of including translations and it was 90% or 95%.
When the final import of translations for the releases (RC2), I only imported languages which satisfies the criteria (90%) (+ languages which language coordinators requested to be included) and updated the lang list accordingly.
Note that I only selected languages with >90% for all resources (horizon, dashboard, dashboard JS, horizon jS).

90% can be revisited. It is open to I18n community discussion.