to_array will not return a boolean "false" response

[BooVeMan]

Given the following:
[{:return=>{:success=>false, :error_messages=>nil, :success_messages=>nil}}]
a call
.to_array(:return, :success)
will return an empty array ([]) and not an array containing false ([false]) so the evaluated result ist nil and not false.

[BooVeMan]

response.rb:76 should read:
return [] if memo[key].nil?