Can confirm. What an infuriating change. Literally zero scenarios would I want to create an object in Modelling Mode for it to have no collision. Put it back to the way it was please 
Edit:: Also just discovered that the collision does not update accordingly when I do a Mesh Cut now. It used to. Now when I cut a mesh the collision I generated on it stays there and I have to now re-generate it every time I cut the mesh! It used to be so simple. Create object, manipulate however you want, and collision always updated along with your changes. Now I have to manually do collision every time.