Thread:VisualEditor/Feedback/Translating the special characters popup

First, I've translated [//translatewiki.net/wiki/MediaWiki:Visualeditor-specialcharacterinspector-title/nb MediaWiki:Visualeditor-specialcharacterinspector-title] at translatewiki, but it doesn't seem to propagate. Second, the strings «Symbols», «Accents» and «Mathematical» seems to be hard-coded in English (screenshot)