first time to hear this. wala pa kong nabasa na same scenario.but i think magkakaconflict with the documents you will provide with the details of the parents. and later on, possible din na may maging problem when accessing documents or applying for IDs ng bata https://amslaw.ph/philippine-laws/civil-law/civil-code-of-the-philippines(4)#:~:text=ARTICLE%20366.,surname%20of%20the%20recognizing%20parent.
Liza Fainza