The only way this would make sense is if the offspring Pokemon's data has some internal record of its parents (compare and contrast: it does record the Pokemon's birth moveset, enabling you to reteach them at a Move Reminder).
Have you already checked for other potential factors (like...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.