Collections Sorting - # of sketches is incorrect

[catarak]

Nature of issue?

• Found a bug

Details about the bug:

• Web browser and version: Chrome
• Operating System: Mac OSX
• Steps to reproduce this bug:

1. Navigate to /collections
2. Click "# of sketches"
3. Scroll through the collections... notice the numbers are not in ascending/descending order.

As reported in #1424.