Call it either one...
usually it grows out of it. if it sticks around you manage a little more branching the same way you always do.. .avoid congestion and train it as needed. It shouldn't impact yield. Yield is environment and canopy size relative to genetics. (environment = light, temp, rh.. everything that impacts rate of photosynthesis.) Number of colas just has to be sufficient to reach potential yield. Too many colas just gives you smaller, more difficult to trim buds as well as congestion and a need to defoliate etc... more work, no gain.
have a goal for your canopy. whether it has this mutation or not, you still handle it a similar way to reach that goal. You only need 2-3 colas per sq ft. This mutation might shave off some time to get the end result you want.