flixos90 0dc1e0633b Multisite: Introduce a can_add_user_to_blog filter to prevent adding a user to a site. ... Under certain circumstances, it can be necessary that a user should not be added to a site, beyond the restrictions that WordPress core applies. With the new `can_add_user_to_blog` filter, plugin developers can run custom checks and return an error in case of a failure, that will prevent the user from being added. The user-facing parts and the REST API route that interact with `add_user_to_blog()` have been adjusted accordingly to provide appropriate error feedback when a user could not be added to a site. Furthermore, two existing error feedback messages in the site admin's "New User" screen have been adjusted to properly show inside an error notice instead of a success notice. Props jmdodd. Fixes #41101. git-svn-id: https://develop.svn.wordpress.org/trunk@41225 602fd350-edb4-49c9-b593-d223f7449a82		2017-08-03 21:40:02 +00:00
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phpunit	Multisite: Introduce a can_add_user_to_blog filter to prevent adding a user to a site.	2017-08-03 21:40:02 +00:00
qunit	REST API: Make jshint happy again after [41222].	2017-08-03 20:35:38 +00:00