Ticket #23427: 23427.patch

wp-admin/js/common.js

@@ -286 +286 @@
                         last = checks.index( this );
                         checked = $(this).prop('checked');
                         if ( 0 < first && 0 < last && first != last ) {
-                                checks.slice( first, last ).prop( 'checked', function(){
-                                        if ( $(this).closest('tr').is(':visible') )
-                                                return checked;
+                                if ( last > first ) {
+                                        checks.slice( first, last ).prop( 'checked', function(){
+                                                if ( $(this).closest('tr').is(':visible') )
+                                                        return checked;
+                                                return false;
+                                        });
+                                } else {
+                                        checks.slice(last, first).prop('checked', function () {
+                                                if ($(this).closest('tr').is(':visible'))
+                                                        return checked;
+                                                return false;
+                                        });
+                                }
+                        }
 
-                                        return false;
-                                });
-                        }
                 }
                 lastClicked = this;