You're right. Dr. Corte Real confirmed that there was a preliminary report which stated that it was Madeleine's DNA. How some people here understand the opposite is beyond my comprehension.
IIRC, the woman who saw the car boot open is Portuguese and a "jurista" and she appeared on GA's documentary.
What did Corte Real say?
Here is what he said in Amaral's documentary, assuming that the translation is accurate:
33.09 – Dr Francisco Corte-Real, Vice President, National Forensics Institute: "When those 15 alleles are included in a mix, where beyond those 15 we can have another 30 or 40 alleles, that means that it includes biological material from several persons. And there it can be much more difficult, much more inconclusive, because we may have a mixture from several persons, including hypothetically, if that happens, we may have several persons from the same family, and that may even give us the idea, in a way, that a certain missing person may be included, and that is not conclusive."