This is a little tangental, but I was surprised to see Hearthstone rendered as “Hearth Stone: Heroes of Warcraft”. Does anybody know if Hearthstone is localized

This is a little tangental, but I was surprised to see Hearthstone rendered as “Hearth Stone: Heroes of Warcraft”. Does anybody know if Hearthstone is localized phonetically or semantically in Chinese markets? Was this a round-trip translation quirk, or did they re-localize the game name and not check it against the English name, or what?