Could both Jirelle and Meliski's reroll powers be used on Jirelle's check that has the Swashbuckling trait? I've included the wording for Meliski's power below.
Meliski's power "When a character at your location would fail a check, you may recharge a card (x suffle into you deck) to allow her to reroll (X 2 dice). She must take the second result.
Ruling is anything that says "you must take the second result" sticks. You get one of those, whatever its source, and then you're done.
