What takes precedence between the nomination guidelines outlined here and the message in the nomination page that says "The autocomplete lists canonical tags for you. Please choose the canonical version of your tag if there is one."?

Eg, I have a canonical that goes "Volfred Sandalwood/Tariq | The Lone Minstrel". Should I stick with the autocomplete or fill in "Tariq | The Lone Minstrel/Volfred Sandalwood (Pyre)"?