BM seems to be retaining the 1h base damage boost when shield is unequipped. Shield spec in video 42+12Shield Specialization: 1 handed base damage now increases by 0.5% per composite shield skill while wielding a shield in the offhand.
please see video for commentary
https://streamable.com/stz1mh
I can't think of a situation where this actually matters but maybe there is one



