`response_data` can't be used multiple times in 1 spec

[natematykiewicz]

The response_data helper is really nice, but since it uses add_helper, it's memoized. This is problematic because it's not memoized based on the arguments provided. If you use it multiple times in 1 spec, the subsequent calls don't return what you'd expect.

To work around this, we've added the following to our RSpec config to undo the memoization:

fix_response_data = Module.new do
  def response_data(*)
    raise 'Make sure this is still necessary' unless RSpec::GraphQLResponse::VERSION == '0.5.0'

    remove_instance_variable(:@response_data) if instance_variable_defined?(:@response_data)
    super
  end
end
config.prepend fix_response_data, type: :graphql