cakephp/cakephp — pull request #728 by boast (2012-07-21 19:14:42+00:00)
Title: TreeBehavior: Changed ```$Model->alias . '.' . $field``` to ```$Model->escapeField($field)```

Changed all string concatenations like ```$Model->alias . '.' . $field``` to the more consistent ```$Model->escapeField($field)```.

No TreeBehavior-TestCases fail after changes.