Ticket #7179: 7179.patch

_source/core/dom/rangelist.js

@@ -163 +163 @@
                         {
                                 for ( var i = 0 ; i < this.length ; i++ )
                                         this[ i ].moveToBookmark( bookmarks[ i ] );
+                        },
+
+                        /**
+                         * Create a copy of list with range inside cloned.
+                         */
+                        clone : function()
+                        {
+                                var clone = [];
+                                // Clone each range.
+                                for ( var i = 0 ; i < this.length ; i++ )
+                                        clone.push( this[ i ].clone() );
+                                return new CKEDITOR.dom.rangeList( clone );
                         }
         };
 

_source/plugins/selection/plugin.js

@@ -771 +771 @@
                         {
                                 var cache = this._.cache;
                                 if ( cache.ranges && !onlyEditables )
-                                        return cache.ranges;
+                                        return cache.ranges.clone();
                                 else if ( !cache.ranges )
                                         cache.ranges = new CKEDITOR.dom.rangeList( func.call( this ) );
 
                                 // Split range into multiple by read-only nodes.
                                 if ( onlyEditables )
                                 {
-                                        var ranges = cache.ranges;
+                                        var ranges = cache.ranges.clone();
                                         for ( var i = 0; i < ranges.length; i++ )
                                         {
                                                 var range = ranges[ i ];
@@ -854 +854 @@
 
                                                 walker.next();
                                         }
+                                        return ranges;
                                 }
 
-                                return cache.ranges;
+                                return cache.ranges.clone();
                         };
                 })(),