David Turner 33f703ef1f Fix up roles after rolling upgrade (#64693)
Node roles vary by version, and new roles are suppressed for BWC. This
means we can receive a join from a node that's already in the cluster
but with a different set of roles: the node didn't change roles, but the
cluster state came via an older master. This commit ensures that we
properly process a join from such a node to ensure that the roles are
correct.

Closes #62840
2020-11-06 12:33:09 +00:00
..