Chat: message too long

Here I was, chatting lively by whisper with a mate I know from another game and the length of the message got away from me. It's no big deal ordinarily, but for the fact that sending that whisper not only gets me the error message "Your message exceeds the character limit" but also deletes everything I have typed thus far.

Aside from the fact that the text being typed should be limited in length, it's very annoying to type and type only to lose everything to a surprising error message like that.