Sergey Biryukov d9d156de80 REST API: Add who=authors as a query parameter for GET wp/v2/users.
Any WordPress user who can `edit_posts` of a post type with `show_in_rest=true` can query for authors. This maps to current WordPress behavior where a WordPress user who can view the Manage Posts view for a post type can see any WordPress user assigned to a post (whether published or draft).

This implementation, over restricting `who=authors` to users with `list_users`, gives us future flexibility in displaying lists of posts. It still respects more restrictive permissions for `context=edit`.

Props danielbachhuber.
Merges [43001] to the 4.9 branch.
Fixes #42202.

git-svn-id: https://develop.svn.wordpress.org/branches/4.9@43067 602fd350-edb4-49c9-b593-d223f7449a82
2018-05-01 22:17:26 +00:00
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2014-02-08 00:51:14 +00:00