If I have a Fiday currently sitting in IMP-1/2 marker state deployed in cover just outside or in the enemy DZ, and I spend an short-order/intuituve attack to lay a mine. Does the fiday loose IMP-1/2? Does IMP-1 get downgraded to IMP-2? I have been looking at the rules for the Impersonation states, and mines on Infinity wiki but unless I missed it I do not see anything regarding this scenario.
Impersonation-1 being downgraded to IMP-2 is a special case that only happens when one or more units successfully Discovers the Impersonator during an order. Declaring AP Mine is not a Short Movement Skill and will fully and immediately cancel Impersonation state for the entire Order.