Allow subclassing money

[nilbus]

I can see from the spec previously included that it was desired that subclassing would work, but the implementation was incomplete.

Scenario:

class SpecialMoney < Money
  # ...
end

SpecialMoney.new(val1) + SpecialMoney.new(val2)
# => returns Money instead of SpecialMoney, thus losing the
# SpecialMoney extensions.

All specs remain green, and it works as expected. New specs have been added to attempt to prevent regression.

[joseph-ravenwolfe]

👍

[semmons99]

nice!

[nilbus]

Thanks for the quick response! If you could release this quickly, that would be helpful to myself and @josephjaber. I believe this would qualify as a patch release (6.6.1), as it seems like a fix to something that was already intended. What do you think?

[semmons99]

6.6.1 released

[nilbus]

Thanks Shane!​

[tsyber1an]

nice patch