This prevents notices from being thrown when a 'pre_get_users' callback
removes required values from the list of `query_vars`.
For backward compatibility with previous uses of 'pre_get_users', default
values are parsed both before and after the action is fired.
Fixes#33449.
Built from https://develop.svn.wordpress.org/trunk@34804
git-svn-id: http://core.svn.wordpress.org/trunk@34769 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This is an alternative to using 'offset', and manually calculating pagination.
Note that 'paged' works only in conjunction with 'number', the latter of which
provides the per-page value.
Props sebastian.pisula.
Fixes#25145.
Built from https://develop.svn.wordpress.org/trunk@34531
git-svn-id: http://core.svn.wordpress.org/trunk@34495 1a063a9b-81f0-0310-95a4-ce76da25c4cd