Quote Originally Posted by DrByte View Post
The various admin files for saving product data (update_product.php, etc etc) in the various product types treat an unspecified date as 'null' when sending the query to the database. All those files use lowercase 'null' in their call to zen_db_perform, so if zen_db_perform only recognizes uppercase 'NULL' then an error will be thrown if MySQL is in strict mode (which is the default for modern MySQL versions).
Yep - we have just encountered the same bug. Thanks for the fix.