octobercms/library — pull request #7 by Flynsarmy (2014-03-11 02:51:14+00:00)
Title: Use correct closure namespace in Extendable class

This fixes the error

Argument 1 passed to October\Rain\Extension\Extendable::extend() must be an instance of October\Rain\Extension\Closure, instance of Closure given

when extending Extendables.