In the expiation for zihar, feeding those in need is one of the relevant prescribed acts. A question arises if marital relations take place during the feeding process: must earlier feedings be discarded and the whole act restarted?
In the cited Hanafi application, the feeding obligation is not automatically restricted by an additional condition that nullifies earlier portions of feeding. The ruling depends on the particular expiation and should not be generalized to every form of expiation.