Start and end transactions on the fixtures datasource.
Start and end transactions on the fixtures datasource.

Fixes #3490

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