change held asking back, a list sent was taken for a list the bus enforces, a plan that could not be
worked out read as not behind, and no test held the real judgement. Now the asker asks only when the
composition grants the controller itself to publish its ask, and the bus's own module says that grant
is in force on the running server (nats_user_can's in_force, mesh-catalog); each fact not known is not
held, said with why. brokerBehind takes a list nobody could compose as behind.
Grants first could hold back the very declaration that lets the controller
issue them. The holder now goes first, then buckets and memberships, then
the rest; a membership that fails holds back only its own machine, and an
announcement whose send stopped at its grants is asked again. Whether the
holder must go first is read from a digest of the user list it was last
sent, not its whole declaration. Migration renumbered to 0058.
A module's new state reached every machine before the permissions to use
it, which came only with a later push. Memberships and buckets now go
before declarations, the machine holding mesh-broker goes first when its
user list must change, and a grant that fails sends nothing and is an
error so the rollout is retried.