Another bugfix for #615

Looks a bit nicer than previous one

mysql-test/r/insert.result

@@ -58,6 +58,16 @@ skr	2
 test	1
 test	2
 drop table t1;
+create table t1 (id int NOT NULL DEFAULT 8);
+insert into t1 values(NULL);
+Column 'id' cannot be null
+insert into t1 values (1), (NULL), (2);
+select * from t1;
+id
+1
+8
+2
+drop table t1;
 drop database if exists foo;
 create database foo;
 use foo;