That's funny and sad at the same time.

And it shows a deeper problem, even though they are willing to align behavior between each other, they failed to communicate and discuss what would be the best approach. That's a bit tragic, IMO

I would argue the even deeper problem is that it's implementation defined. Should be in the spec and they should conform to the spec. That's why I'm so paranoid and zeroize things myself. Too much hassle to remember what is or isn't zero.