and still manages to maintain her position, as long as proved by the school admin. Under such a case, her name may be temporarily disappeared from the Dept's posted faculty list, yet she doesn't quit her job, at lease in the sense people would think.
One example, I know there's a Chinese lady who holds a professorship at Indianana Univ. and takes a vice president appointment at a southwestern Chinese university, with the permission of Indianna for absense. Publically announced in China's media "she has returned as a sea turtle", however, we know she doesn't resign from her job at US. She just takes the advantage granted by the weired situation in China now.