The title of the episode is a number after the title of the series.
Sofia's clone calls herself "Sofia the Worst", which is a near-reference to the show's title.
First time Cedric actually touches the Amulet of Avalor, albeit that was just the one worn by Sofia's clone.
When Cedric holds the clone Sofia's amulet, it does not activate a safeguard for stealing it due to not being the real amulet.