Upgrade thoughts: 8.3 -> 9.1 -> 9.3

Guys,

We're getting ready to ugprade our 4 node 8060 cluster from 8.3.2P9 to
9.1P19 and then onto 9.3P17, all this weekend.  My only real concern
is the upgrade from 9.1 to 9.3, which lists a major warning for bug
1250500:

  Expired truststore security certificates causing upgrade and
  new installation failures.

Unfortunately, I can't run an upgrade advisor report for my cluster
going from 9.1P19 to 9.3P17, because I'm not yet running 9.1, and it
can take upto a week for the autosupport data to get pushed to Upgrade
Advisor.  Sigh...

Has anyone run into this issue when doing the 9.1 -> 9.3 upgrade with
the expired certificate?  Otherwise, it all looks good, my cluster
switches are supported at their current version, etc.

John