Ncursesw bug in refreshing wide character (with patch)

[Eungkyu Song]

Hi,

In the case that there are wide characters and characters in next line
(or previous line), when is scroll screen some wide characters are
broken.

This is happen because ncurses does not handle nac character correctly.

You can replay it like this

you need UTF-8 or EUC-KR enabled terminal or font.
LANG=ko_KR mutt and scroll the help screen.
(ja_JP will be ok, too)

I attached patch.

ps) plz cc me

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ncurses-wide-fix.diff
Description: Text document