Fix bug 1674173: Add support for non-ASCII characters in mentions (#1722)
Fix bug 1674173: Add support for non-ASCII characters in mentions (#1722)


mathjazz/pontoon,mathjazz/pontoon,mozilla/pontoon,mozilla/pontoon,jotes/pontoon,jotes/pontoon,mathjazz/pontoon,mozilla/pontoon,mathjazz/pontoon,jotes/pontoon,mozilla/pontoon,mathjazz/pontoon,mozilla/pontoon,jotes/pontoon