After [33023] users would always be notified, this restores previous behavior. Props markjaquith, ocean90. Fixes #33358. Built from https://develop.svn.wordpress.org/trunk@33620 git-svn-id: http://core.svn.wordpress.org/trunk@33587 1a063a9b-81f0-0310-95a4-ce76da25c4cd