In a new game in 1.8a4 with only the soundtrack and SotP HD, (typFind 's) finds these:
baStdAutonBaseObsolete scHathor baZoanthropeBaseObsolete scAnubis baCharonBusterObsolete scKaga baCSCBaseObsolete scT55ArmedTransportW5

george moromisato 22 Feb 2018:

Fixed both issues in 1.8 Beta 1.

I think the obsolete type problem was a regression, but the problem with ShipClassOverrides was always a bug.