function _setOption uses self instead of this

[karachi]

Steps to reproduce:

1. Create sortable objects: $('#sort').sortable();
   
2. Set option via method 'option': $('#sort').sortable('option', 'axis', 'x')
   
3. Error occures: this.options is undefined
   

This occures because function $.Widget.prototype._setOption() is called in context of self which points to window. This should be used instead.

Here is the patch

--- jquery.ui.sortable.js	2010-04-30 11:50:24.000000000 +0300
+++ jquery.ui.sortable.fixed.js	2010-05-17 19:38:26.000000000 +0300
@@ -81,7 +81,7 @@
 				[ value ? "addClass" : "removeClass"]( "ui-sortable-disabled" );
 		} else {
 			// Don't call widget base _setOption for disable as it adds ui-state-disabled class
-			$.Widget.prototype._setOption.apply(self, arguments);
+			$.Widget.prototype._setOption.apply(this, arguments);
 		}
 	},

[karachi]

Patch that fixes ticket

[rdworth]

Duplicate of #5581