Some leadership or unique abilities affect multiple faction tags - will a character bearing more than one of these tags receive twice the benefit?
Lando Calrissian grants 15 Speed and 29% Crit Damage to Rebels and Scoundrels. Raid Han is both a Rebel and a Scoundrel, so does he get 30 Speed and 58% Crit Damage?
Zeta'd R2D2 gives 10% of a bunch of his stats to Rebels, Resistance, Republic, and Droids - Chopper and BB8 each have two of those tags, so do they get 20%?
I only included two examples since one is a leader ability and one is a unique, and they could conceivably behave differently.