Always create a new instance of the object for the destination object's property

[Kritjara]

Sometimes a property in a ViewModel is a record, for example:
public record PeriodData(DateOnly StartDate, DateOnly EndDate);

When at least one property of the record changes, I need the record instance to be replaced. However, at the moment the mapper seems to mutate the existing record instead, and as a result the UI does not update.

I initially thought that using
.ForMember(dest => dest.ValidPeriod, opt => opt.MapFrom(src => new PeriodData(src.ValidPeriod.StartDate, src.ValidPeriod.EndDate)));
or
.ForMember(dest => dest.ValidPeriod, opt => opt.MapFrom((src, _, _, context) => context.Mapper.Map<PeriodData>(src.ValidPeriod)));
would solve this problem, but it does not.

Would it make sense to have a mapping option for record types that explicitly prevents mutation and always creates a new instance instead?