UITableViewCell subclasses can implement this method to perform additional animations when it is changing state (such as from a normal state to editing move). This method is called at the end of the animation block to clean up after the state change (such as removing the editing and reordering controls when transitioning from editing to normal mode).

Subclasses must always call base when overriding this method.

Note that when the user swipes to delete, the cell transitions to the UITableViewCellState.ShowingDeleteConfirmationMask - but UITableViewCellState.ShowingEditControlMask is not set. Remember to test for the correct value when handling this case.