Summary

The sort by size feature in Space Attachment macro doesn't work as intended.

Testing Environment

Confluence v6.10.0
Confluence v6.5.1
Confluence v6.10.0

Steps to Reproduce

1. Create a page in Confluence.
2. Add multiple attachments in it.
3. Save the page.
4. In the same or another page add Space attachment macro.
5. Sort the list by Size.

Expected Result

List is sorted by ascending or descending size, as selected by the user.

Actual Result

The list is not sorted with respect to size.

1. Sorting in ascending order.
   
2. Sorting in descending order.
   

Workaround

None.