Replacing nodes in subnet uzr34

[sat]

Further discussion at:

Subnet Management - uzr34 (II)

Thanks @rbirkner, no problem. This is information that I gleaned from reviewing a prior proposal, where it was highlighted by @Severin. I’ve only said that the proposal summary should not be taken literally Taking it literally would mean that deploying new canisters to the subnet would be unauthorized, which would be a misleading / unhelpful classification (some system subnets depend on this feature).