help for evaluating translations

Hi!

What do you do if you are asked to help evaluate a translation and... well:
The original text is in Arabic.
The English translation uses the German translation as its source text. The English translation is a pretty much correct translation of the German text, but it is definitely not a correct translation of the original Arabic source text.

Do I click on "this translation seems to be correct" or on "it seems to be incorrect?"

(btw. The German translation used the Potuguese translation of the original Arabic source text as its source text)

Chinese whispers anyone? ;-)

In thuis case you choose "Incorrect meaning" and you post a message below the translation to warn us.
This kind of situation happens when we approve a translation which should not have been (it happens ).
If it's the translation I'm thinking about, I will reject all of the accepted translations because it seems there is a wrong meaning.