GameCenter question

[Applauz78]

Not sure if any of you have used Game Center in your apps..

I'm using it for the first time and have an approved app...  my question is more around adding an updated app to iTunes Connect.

When you add your updated app ..  under leaderboard it says

0 of 0 Selected to submit (99 of 100 Leaderboards Remaining)

No New Leaderboards have been set up.

My question is ...    is my updated app going to automatically take on the current leaderboard that's being used ?  .. The way it words this scares me to think that no leaderboard will be used with the update.

Thoughts ?