[Bug 36494] New: Hearthstone shows question marks for Cyrillic text in chat

http://bugs.winehq.org/show_bug.cgi?id=36494

Bug ID: 36494
           Summary: Hearthstone shows question marks for Cyrillic text in
                    chat
           Product: Wine
           Version: 1.7.17
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 48570
  --> http://bugs.winehq.org/attachment.cgi?id=48570
Screenshot of Heartstone with type "test/тест" text

When I try to send a message to my friends via Hearthstone's chat overlay, it
works only for Latin characters. Russian (Cyrillic) are shown as question marks
("?"). Recipients confirm that they receive it as question marks on their side.

On Windows XP text sends correctly (so, it's not game's issue). I don't have
such problem with chat in Steam, when I launch windows version under wine (so,
it shouldn't be an issue with locale).

wine: wine-1.7.17;
Ubuntu 14.04;
Main locale: "LANG=en_US.UTF-8";