What would happen if i bred my brindle corgi to a blue heeler?

I know that you are not supposed to breed a brindle Cardigan corgi to a blue merle Cardigan corgi, as it can result in blindness, and they might turn out white. But what if it was a blue heeler? Would they turn out the same way? i was thinking not because the puppies wont be purebred but idk. Thanks