Add test for XML.
Add test for XML.

Test xml with multiple model results
Fixes #2304

timhoeppner/cakephp,ionas/cakephp,CVO-Technologies/cakephp,bravo-kernel/cakephp,dakota/cakephp,cakephp-fr/cakephp,CVO-Technologies/cakephp,cakephp-fr/cakephp,garethellis36/cakephp,davidyell/cakephp,burriko/cakephp,petteyg/cakephp,et304383/passbolt_api,justinyost/cakephp,web-player/cakephp,erikfig/cakephp,jeffblack360/cakephp,dakota/cakephp,ionas/cakephp,michaelze/cakephp,mvdriel/cakephp,et304383/passbolt_api,web-player/cakephp,cakephp/cakephp,et304383/passbolt_api,tenkoma/cakephp,CakeDC/cakephp,davidyell/cakephp,justinyost/cakephp,erikfig/cakephp,tgr0ss/cakephp,ndm2/cakephp,jerems02/cakephp,akintoey/cakephp,tenkoma/cakephp,jeffblack360/cakephp,jjj117/cakephp,tenkoma/cakephp,berrygoudswaard/cakephp,bravo-kernel/cakephp,Phillaf/cakephp,berrygoudswaard/cakephp,ndm2/cakephp,cakephp/cakephp,Phillaf/cakephp,ADmad/cakephp,cakephp/cakephp,tisu2tisu/cakephp,berrygoudswaard/cakephp,jjj117/cakephp,dkarvounaris/cakephp,mvdriel/cakephp,HavokInspiration/cakephp,dkarvounaris/cakephp,et304383/passbolt_api,mvdriel/cakephp,davidyell/cakephp,timhoeppner/cakephp,ndm2/cakephp,jjj117/cakephp,nrother/cakephp,cakephp-fr/cakephp,khoimt/cakephp-study,jeffblack360/cakephp,et304383/passbolt_api,tisu2tisu/cakephp,gmponos/cakephp,tgr0ss/cakephp,ndm2/cakephp,eboominathan/cakephp,eryw/cakephp,gmponos/cakephp,CVO-Technologies/cakephp,eboominathan/cakephp,garethellis36/cakephp,petteyg/cakephp,kumamidori/cakephp,CakeDC/cakephp,CakeDC/cakephp,CakeDC/cakephp,dkarvounaris/cakephp,jerems02/cakephp,adopico/cakephp,burriko/cakephp,kumamidori/cakephp,Balachan27/cakephp,kumamidori/cakephp,garethellis36/cakephp,Balachan27/cakephp,ionas/cakephp,pbaire/cakephp,nrother/cakephp,bravo-kernel/cakephp,HavokInspiration/cakephp,eryw/cakephp,Balachan27/cakephp,adopico/cakephp,pbaire/cakephp,timhoeppner/cakephp,yinhe007/cakephp,web-player/cakephp,adopico/cakephp,gmponos/cakephp,burriko/cakephp,erikfig/cakephp,thinkingmedia/cakephp,petteyg/cakephp,mvdriel/cakephp,khoimt/cakephp-study,tgr0ss/cakephp,garethellis36/cakephp,thinkingmedia/cakephp,michaelze/cakephp,thinkingmedia/cakephp,dakota/cakephp,yinhe007/cakephp,elboletaire/cakephp,cakephp/cakephp,yinhe007/cakephp,HavokInspiration/cakephp,Phillaf/cakephp,pbaire/cakephp,elboletaire/cakephp,nrother/cakephp,akintoey/cakephp,petteyg/cakephp,ADmad/cakephp,michaelze/cakephp,elboletaire/cakephp,eboominathan/cakephp,jerems02/cakephp,eryw/cakephp,tenkoma/cakephp,ADmad/cakephp,justinyost/cakephp,akintoey/cakephp,tisu2tisu/cakephp,ADmad/cakephp,khoimt/cakephp-study,dakota/cakephp