Ticket #4716: 4716_3.patch

_source/plugins/selection/plugin.js

@@ -162 +162 @@
                                                                 saveEnabled = false;
                                                         });
 
+                                                doc.getWindow().on( 'blur', function( evt )
+                                                        {
+                                                                // IE before version 8 will leave cursor blinking inside the document after
+                                                                // editor blurred unless we clean up the selection. (#4716)
+                                                                var env = CKEDITOR.env;
+                                                                if ( env.ie && env.version < 8 )
+                                                                        editor.document.$.selection.empty();
+                                                        });
+
                                                 // IE fires the "selectionchange" event when clicking
                                                 // inside a selection. We don't want to capture that.
                                                 body.on( 'mousedown', disableSave );