Fix issue with `/0` as a path.
Fix issue with `/0` as a path.

Type juggling resulted in the `'0'` being eaten and not set as the path.

tenkoma/cakephp,dakota/cakephp,petteyg/cakephp,davidyell/cakephp,ndm2/cakephp,petteyg/cakephp,mvdriel/cakephp,garethellis36/cakephp,cakephp/cakephp,garethellis36/cakephp,ndm2/cakephp,petteyg/cakephp,dakota/cakephp,ndm2/cakephp,tenkoma/cakephp,garethellis36/cakephp,mvdriel/cakephp,CakeDC/cakephp,dakota/cakephp,ADmad/cakephp,CakeDC/cakephp,cakephp/cakephp,davidyell/cakephp,mvdriel/cakephp,tenkoma/cakephp,tenkoma/cakephp,davidyell/cakephp,cakephp/cakephp,garethellis36/cakephp,dakota/cakephp,cakephp/cakephp,ndm2/cakephp,petteyg/cakephp,ADmad/cakephp,ADmad/cakephp,mvdriel/cakephp,ADmad/cakephp,CakeDC/cakephp,CakeDC/cakephp