Not much was Turkish about Herfy’s “Turkish Burger” besides the branding – an Ottoman fez over a black moustache – but that didn’t stop the sandwich from getting caught up in a geopolitical storm.This week, as tensions rose between Ankara and Riyadh, the Saudi fast food chain announced that it was replacing the beef patty with an identical “Greek burger,” slashing the price to boot.“It’s the same thing,” Herfy employee Mahmood Bassyoni reassured a customer with a smile, offering a spoonful of…