I heard a third-hand report that a divorced man wanted to cancel the sealing to the first wife.  As time moved on, the man was excommunicated.  After a while, the bishop where he lived came to him and asked him to reconsider his sealing cancellation, counseling him not to do it.  Doesn’t an excommunication cancel the sealing?

It brings to mind high-profile cases where a spouse gets excommunicated.  Since Kate Kelly is excommunicated, does her sealing to her husband get cut already, even though her husband has done nothing wrong in the eyes of the Church?  Lavina Fielding Anderson has been excommunicated for over 20 years, but continues to attend LDS Church services, and her husband is still a member.  With two people involved in a sealing, how is the sealing affected by both spouses when one is exed?