Now that we have access to create sub-tasks from the REST interface it would be nice to be able to access (read and write) the sub-task order. I don't see this in the current REST data.

The list of "subtasks" returned in the REST data for a parent issue should include a "rank" or "order" or some other such field for each item.

I've confirmed this data is missing in 5.0.7 and it doesn't look like it is included in the doco online for 5.1.5.