Open Library, make sure Tags column is visible (not My Tags, but just regular Tags).
Click on Tags column header to sort by it.
Result: library sorts by Title, not by Tags.
Note: My Tags works fine. It sorts/groups by tags I've assigned. I'd expect Tags to work the same way.
[I realize Tags is a field that is being reserved for future use, but for now it does show the tags I've assigned. So I would expect some sort of sensible behavior when sorting by that column. The way it behaves now is clearly wrong.]
