If this mutation proves to be stable, it would really be great. Normally, most breeders aim to move away from trifoliate traits toward monofoliate ones, but to me a polyfoliate leaf also has its own appeal.
Perhaps it could be useful to preserve the polyfoliate sections by grafting them as separate plants? Just as a hypothesis: if the polyfoliation were limited to a single bud, further cultivation of that specific bud might allow the trait to be reinforced. The mother plant, on the other hand, might eventually produce normal buds again and lose the characteristic.
But as I said, this is just a hypothesis without knowing the deeper background.
