The ed_viread method is used for reading when locale has an encoding that uses
wide characters (utf8 for example). So we need to cook the raw'ed terminal
before exit, otherwise we end up with a terminal that cannot echo.

--- a/src/cmd/ksh93/sh/fault.c	2010-01-18 21:41:18.000000000 +0530
+++ b/src/cmd/ksh93/sh/fault.c	2010-03-10 21:23:56.000000000 +0530
@@ -614,7 +614,7 @@ void sh_done(void *ptr, register int sig
 	sh_accend();
 #endif	/* SHOPT_ACCT */
 #if SHOPT_VSH || SHOPT_ESH
-	if(sh_isoption(SH_EMACS)||sh_isoption(SH_VI)||sh_isoption(SH_GMACS))
+	if(mbwide()||sh_isoption(SH_EMACS)||sh_isoption(SH_VI)||sh_isoption(SH_GMACS))
 		tty_cooked(-1);
 #endif
 #ifdef JOBS