Changing slug of author to an untaken one should work
Current Behavior
You get an error saying that slug is already taken, even in cases with slugs that are definitely not taken
Possible solution
An obvious bug could be that it's checking whether the current instead of the new slug is taken (which it obviously would be), haven't looked at the code though so don't know if it's that. Just an intuitive thought
Steps to Reproduce (for bugs)
Go to any author editing page
Change the slug to something obviously not taken (confirm with the popup)
Expected Behavior
Changing slug of author to an untaken one should work
Current Behavior
You get an error saying that slug is already taken, even in cases with slugs that are definitely not taken
Possible solution
An obvious bug could be that it's checking whether the current instead of the new slug is taken (which it obviously would be), haven't looked at the code though so don't know if it's that. Just an intuitive thought
Steps to Reproduce (for bugs)