Store activities in TRADITIONAL mode.

It will protect against storing truncated data.

product/CMFActivity/skins/activity/SQLDict_writeMessageList.zsql

@@ -19,6 +19,7 @@ group_method_id_list
 tag_list
 serialization_tag_list
 order_validation_text_list</params>
+SET SESSION sql_mode='TRADITIONAL'; <dtml-var sql_delimiter>
 INSERT INTO message
 (uid, path, active_process_uid, date, method_id, processing_node, processing, priority, group_method_id, tag, serialization_tag, order_validation_text, message)
 VALUES

product/CMFActivity/skins/activity/SQLQueue_writeMessageList.zsql

@@ -19,6 +19,7 @@ group_method_id_list
 tag_list
 serialization_tag_list
 </params>
+SET SESSION sql_mode='TRADITIONAL'; <dtml-var sql_delimiter>
 INSERT INTO message_queue
 (uid, path, active_process_uid, date, method_id, processing_node, processing, priority, group_method_id, tag, serialization_tag, message)
 VALUES