Fix post date scheduling between statuses

Cleanup and add comments for time/schedule fix.

Update timestamp on edit, make sure timestamp is correct between statuses.

Time shouldn't update when scheduling.

modules/custom-status/custom-status.php

@@ -1326,14 +1326,18 @@ function fix_custom_status_timestamp( $data ) {
 		// We're only going to normalize the post_date_gmt if the user hasn't set a custom date in the metabox
 		// and the current post_date_gmt isn't already future or past-ized
 		foreach ( array('aa', 'mm', 'jj', 'hh', 'mn') as $timeunit ) {
-			if ( !empty( $_POST['hidden_' . $timeunit] ) && (($_POST['hidden_' . $timeunit] != $_POST[$timeunit] ) || ( $_POST['hidden_' . $timeunit] != $_POST['cur_' . $timeunit] )) ) {
+			//Hidden time will equal the current time if we've created a new post, or the time we've selected if we've scheduled the post
+			//The only thing that we need to care about is whether or not someone has modified the date/time.
+			if( ( !empty( $_POST['cur_' . $timeunit] ) && $_POST['cur_' . $timeunit] != $_POST[$timeunit] ) ) {
 				$ef_normalize_post_date_gmt = false;
 				break;
 			}
 		}
+
 		if ( $ef_normalize_post_date_gmt )
-			if ( in_array( $data['post_status'], $status_slugs ) )
+			if ( in_array( $data['post_status'], $status_slugs ) ) 
 				$data['post_date_gmt'] = '0000-00-00 00:00:00';
+
 		return $data;
 	}