updated for version 7.4.661

Problem:    Using "0 CTRL-D" in Insert mode may have CursorHoldI interfere.
            (Gary Johnson)
Solution:   Don't store K_CURSORHOLD as the last character. (Christian
            Brabandt)

src/edit.c

@@ -760,7 +760,8 @@ edit(cmdchar, startln, count)
 	/*
 	 * Get a character for Insert mode.  Ignore K_IGNORE.
 	 */
-	lastc = c;			/* remember previous char for CTRL-D */
+	if (c != K_CURSORHOLD)
+	    lastc = c;		/* remember the previous char for CTRL-D */
 	do
 	{
 	    c = safe_vgetc();