When ignore_order is True, make the search breadth-first.
When ignore_order is True, make the search breadth-first.

This allows us to hit all of our fast cases.

hippyvm/hippyvm,hippyvm/hippyvm,hippyvm/hippyvm,xhava/hippyvm,hippyvm/hippyvm,xhava/hippyvm,xhava/hippyvm,xhava/hippyvm,hippyvm/hippyvm,hippyvm/hippyvm,xhava/hippyvm,hippyvm/hippyvm,xhava/hippyvm,xhava/hippyvm