fix for nested.add_link with polymorphic associations and fixed action
fix for nested.add_link with polymorphic associations and fixed action

activescaffold/active_scaffold,activescaffold/active_scaffold,budree/active_scaffold,budree/active_scaffold,mallikarjunayaddala/active_scaffold,budree/active_scaffold,AlbertoBarrago/active_scaffold,AlbertoBarrago/active_scaffold,mallikarjunayaddala/active_scaffold,mallikarjunayaddala/active_scaffold,activescaffold/active_scaffold,AlbertoBarrago/active_scaffold