One interesting thing - I use 2.9.25 with upgraded routing-test package. When I export the configuration I see:
/ routing ospf interface
set FIXME interface=ether1 cost=10 priority=1 authentication-key=“”
retransmit-interval=5s transmit-delay=1s hello-interval=10s
dead-interval=40s network-type=broadcast
Very interesting - don’t you think? 
A pity is that importing such config will not work 
Gregor