This version fixes a long standing subtle regression that was introduced since 4.417.  Under rare circumstances records would be written into the database with what are known as null fields.  Normally it would not have functional impacts and it is easy for us to remotely fix dodgy records, but never-the-less still a bug that this version now fixes. Had one case where customer account records being added would not show up in customer list because of this problem. Another where newly created jobs would not appear in job list.

Problem should now be completely fixed.  Original changes to c9 in 4.417 were reverted and a completely different and better way to deliver one of the features 4.417 delivers has been put in place.