explicitly sent nil values should be converted to a default if provided

[AaronLasseigne]

class Foo < ActiveInteraction::Base
  string :query, default: ''

  def execute; end
end

Foo.run(query: nil).errors.full_messages
["Query is required"]

There are times where a parameter is not posted to the page and the interaction has a default for it. Does it make sense to view an explicitly provided nil as permission to use the default?

[tfausak]

Yeah, I think passing in nil should be interpreted the same as not passing anything.