Ticket #4763: 4763_2.patch

_source/core/dom/range.js

@@ -742 +742 @@
 
                                         startOffset = startContainer.getIndex() + 1;
                                         startContainer = startContainer.getParent();
-                                        // Check if it is necessary to update the end boundary.
-                                        if ( !collapsed && this.startContainer.equals( this.endContainer ) )
+
+                                        // Check all necessity of updating the end boundary.
+                                        if( collapsed )
+                                                this.collapse( true );
+                                        else if ( this.startContainer.equals( this.endContainer ) )
                                                 this.setEnd( nextText, this.endOffset - this.startOffset );
+                                        else if ( startContainer.equals( this.endContainer ) )
+                                                this.endOffset += 1;
                                 }
 
                                 this.setStart( startContainer, startOffset );
 
                                 if ( collapsed )
-                                        this.collapse( true );
+                                        return;
                         }
 
                         var endContainer = this.endContainer;