Zentimo and Sapphire Spellstone Interaction?

In a game I had recently, I was playing as Espionage Rouge vs a Shaman, and I rolled both Zentimo and Lesser Sapphire Spellstone. I had 4 minions on board I believe. So then I played Zentimo, then the Spellstone on a minion next to Zentimo. So it copied the minion then Zentimo's effect kicks in and copies himself as well as the other adjacent minion thus I had a full board.

But then the copied Zentimo's ability kicked in but I had a full board so it wouldn't create another minion due to the Spellstone.

Which that brought me asking, if Zentimo is the only minion on the board, would the copies ability trigger until you had a full board.

I've searched on youtube and this reddit but haven't seen any evidence of this interaction, and I can't test it since I dont have Zentimo.

Is someone able to test this interaction for me? Would be a cool thing to see.