Better handling of multi-line buffers.

Functions/Zle/edit-command-line

@@ -11,10 +11,7 @@ local tmpfile=${TMPPREFIX:-/tmp/zsh}ecl$$
 print -R - "$PREBUFFER$BUFFER" >$tmpfile
 exec </dev/tty
 ${VISUAL:-${EDITOR:-vi}} $tmpfile
-zle kill-buffer
-BUFFER=${"$(<$tmpfile)"/$PREBUFFER/}
-CURSOR=$#BUFFER
+print -z - "$(<$tmpfile)" 
 
 command rm -f $tmpfile
-zle redisplay
-
+zle send-break		# Force reload from the buffer stack