
Judges would not normally be interested in small imperfections and it would only count should, and I have never know it, the judge was faced with 2 dogs of identical merit.
I would point it out to your vet when the pup is checked before going to it's new home but I imagine it is something that will disappear anyway.
EDIT to say I have answered this under false pretences, I neither show, own or judge Labs, sorry.