Don't skip the processing of the feed if posts are empty because we end up...

Don't skip the processing of the feed if posts are empty because we end up skipping some additional processing that needs to happen (like setting the last update time and restoring revisions)

includes/class-wp-push-syndication-server.php

@@ -1238,9 +1238,6 @@ class WP_Push_Syndication_Server {
 			$client         = Syndication_Client_Factory::get_client( $transport_type, $site_id );
 			$posts          = apply_filters( 'syn_pre_pull_posts', $client->get_posts(), $site, $client );
 
-			if( empty( $posts ) )
-				continue;
-
 			$post_types_processed = array();
 
 			foreach( $posts as $post ) {