Ticket #22236: 22236-2.patch

wp-admin/js/inline-edit-post.js

@@ -62 +62 @@
                                 t.setBulk();
                         } else if ( $('form#posts-filter tr.inline-editor').length > 0 ) {
                                 t.revert();
+                        } else if ( $('select[name="'+n+'"]').val() == '-1' ) {
+                                e.preventDefault();
                         }
                 });
         },