Validation condition is reversed?

[m5rk]

The validator here:

https://github.com/zuorasc/zuora/blob/master/lib/zuora/objects/product_rate_plan_charge.rb#L33

appears to be the opposite of what's intended. I would expect:

validates_numericality_of :included_units, if: Proc.new { |prpc| INCLUDED_UNITS.include?(prpc.charge_model) }

That is, only validate the numericality of :included_units if the charge model is in the INCLUDED_UNITS list.