Sub-sort Tickets when sorting by Group/Bucket/etc

[Hildy]

When sorting by a value that's shared across multiple objects, the display order can change based on how MySQL returns things. If we add a sub-sort on ID, it will make those results always show up in the same order.

[Hildy]

This issue also shows up when sorting by updated date where multiple objects have the same updated date; paging can change the display order and hide objects.

[jstanden]

This just came up again when a client exported records. In some cases they had dupes or missing records. They were sorting on a non-deterministic column.