Odd leaves on apple seedling

Made about 70 seedlings last year, openly pollinated, mother an ornamental apple / crab apple. On of the plants have very different leaves, they are somewhat spiky and a lot broader compared to other seedlings and apple trees that I got.

Any wild guesses? What have caused this? Is it going to be a healthy tree only with odd leaves? Could it possibly help me guess how the fruits/tree will turn out? Are there any known apples with this type of leaves?

Picture from earlier this evening.


Some native crabs (malus fusca, malus ionensis, malus coronaria) have lobed leaves. I have at least one seedling ornamental crab with lobed leaves too.