[Bug?] Corvette Shield Mitigation

Just trying out 1.03 and my corvettes were taking a huge beating during the first pirate raid. I noticed that their shield mitigation was stuck at baseline (~15%, up to 17% with Advent culture upgrades), ie. wasn't increasing under fire.

Was this intended or not? I don't recall there being any discussion about corvettes having their shield mitigation stuck on low.

I haven't tested this for anyone but AL, on the off chance this is a bug I'm going to do some quick tests with the other 5 factions.

Updates:

TEC Loyalists: Corvette mitigation climbs in combat.

TEC Rebels: Ok too.

After re-testing AL vettes, they seem okay before you get culture upgrades... could be a false alarm. Testing some more now.

Can't seem to replicate it now with a new game. Going back to the original save.

Original save now shows expected behaviour. I'm going to assume I managed to imagine this until I or someone else sees this behaviour again.

TL;DR If this had been a real/confirmed bug I would now be sending saves to the devs for replication at their end. You win this round, Starclad! Any further suspicious behaviour will be reported.