First of all, thanks a lot for all the effort put into the Iris Front-End!
It is such a beautiful interface to Mopidy, and one of the early motivators for me try out the whole system in the first place!

I'm having some problems with sorting my local Albums via Iris. In detail:

Describe the bug
Trying to sort local albums by 'Added' doesn't produce expected results.
The sort order seems to be identical to sort by 'Name' as well as 'As Loaded'.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Albums'
2. Change sort order to 'Added'
3. See error

Expected behavior
The sort order should be so, that the last added albums appear on top.

Screenshots
Sort by name:

Sort by added:

Environment details:

• OS: Server running on Raspbian. Browsing collection on Ubuntu 18.04
• Browser: Firefox
• Iris version: Mopidy-Iris==3.46.0