Make buffer for certificate subjects bigger.
Flush buffer between reads (in case we still get something with a longer subject).

Addresses BIT-1195
update test baseline
Merge remote-tracking branch 'origin/topic/bernhard/ticket-1195'

* origin/topic/bernhard/ticket-1195:
  update test baseline
  Make buffer for certificate subjects bigger. Flush buffer between reads (in case we still get something with a longer subject).

BIT-1195 #merged