Example URL: https://test.archiveofourown.org/admin_posts?utf8=✓&tag=105&language_id=en&commit=Go
Steps to reproduce:
About > News
In the "Tag" menu at the top of the posts, choose a tag to filter by
Click on the "Tag" menu again
It lists tags waaaay too many times. It appears that what it's doing is going through all of the admin posts, gathering up the tags, and listing them. So if Post 1 is tagged "2009, release notes," Post 2 is tagged "2009, ADT Minutes," and Post 3 is tagged "2009, ADT Minutes," the tag list is
What should happen
Each tag should be listed once. The tags should be in alphabetical order.
Same cause as AO3-5259, slightly different description of the issue.