Avoid duplicated query when retrieving empty posts collections by adding a check if the page is more than 1. Props furi3r, gdetassigny, TimothyBlynJacobs, spacedmonkey. Fixes #55677. Built from https://develop.svn.wordpress.org/trunk@53498 git-svn-id: http://core.svn.wordpress.org/trunk@53087 1a063a9b-81f0-0310-95a4-ce76da25c4cd