Ticket #35874: fix-update-post.patch

src/wp-includes/post.php

@@ -3538 +3538 @@
                 $post_cats = $post['post_category'];
 
         // Drafts shouldn't be assigned a date unless explicitly done so by the user.
-        if ( isset( $post['post_status'] ) && in_array($post['post_status'], array('draft', 'pending', 'auto-draft')) && empty($postarr['edit_date']) &&
-                         ('0000-00-00 00:00:00' == $post['post_date_gmt']) )
-                $clear_date = true;
-        else
-                $clear_date = false;
+        $clear_date = false;
+        if ( isset( $post['post_status'] ) && in_array($post['post_status'], array('draft', 'pending', 'auto-draft')) ) {
+                // edit_date will only be set for date edits made throug wp-admin, not through XMRLPC API
+                $missing_admin_edit_flag = empty( $postarr['edit_date'] );
+                $missing_post_date = ( '0000-00-00 00:00:00' == $post['post_date_gmt'] );
+                $missing_post_date_gmt = ( '0000-00-00 00:00:00' == $post['post_date'] );
+                if ( $missing_admin_edit_flag && $missing_post_date && $missing_post_date_gmt ) {
+                        $clear_date = true;
+                }
+        }
 
         // Merge old and new fields with new fields overwriting old ones.
         $postarr = array_merge($post, $postarr);