yiisoft/yii — pull request #3566 by spaceman9 (2014-09-30 13:32:40+00:00)
Title: Cuploadedfile subclass patch

Added the ability to subclass the CUploadedFile class by adding a static method to get hold of the classname. If this method is overloaded in the subclass then the the static methods getInstance etc will return the subclass instead of CUploadedFile