Forums Bug Reports multibyte display bug is still there(v6.14)

mIRC version: 6.14
Charset: GB2312
Try this simple command and notice that "ab" is not displayed.
//echo -a ab $+ $chr(3) $+ <multibyte>
And this more complicated command:
//echo -a <multibyte> $+ $chr(3) $+ ab $+ $chr(3) $+ <multibyte> $+ $chr(3) $+ cd $+ $chr(3) $+ <multibyte>
(In the commands above, substitute <multibyte> with multibyte characters such as Chinese characters)
To summarize: when one or two ASCII characters are followed by control codes(Ctrl+B/K/R/U) followed by multibyte characters, the ASCII characters are not displayed.

This problem only occurs when "multibyte display" box in mIRC Option dialog is checked.

This should be fixed in the new mIRC 6.15
59.Fixed various multi-byte display/mark/copy bugs.