Localization for "Autosave every ... minutes" on Page Editor not applied

It seems that localized strings for "Autosave every ... minutes" on a page editor are not applied for some reason. The strings has been first localized weeks ago, so I think it should be already available on UI.

https://l10n.xwiki.org/translate/xwiki-platform/xwiki-core-resources/ja/?sort_by=-priority%2Cposition&offset=339#history

See the screenshot for the context.