User blog comment:B214/Question and Answers 4/@comment-59.88.82.206-20150320110201

As per the statement "Issei noticed that a purple flame fell from Walburga which Tobio collected and placed inside a special lantern. According to Tobio, the Longinus Incinerate Anthem can choose to leave its current user of its own intention and be inherited by another. If the purple flame was left alone, it will wander and find another possessor.

meaning Walburga is no longer possessor of incinerate Anthem?