If one does fidyah for not fasting in Ramadan, but afterwards one is able to fast, should one make up for missed days?

If one is terminally ill, and: - is unable to fast during the month of Ramadan, and - it is not foreseeable at the time that one would be able to make up for missed days in the future, It is agreed upon that one should do a [_fidyah_](https://islamqa.info/en/49944) by feeding one poor person an equivalent of what one normally eats for every day one is unable to fast. If one then recovers after Ramadan and - is able to fast, and - is able to make up for missed days of Ramadan, **Question:** With the days already being expiated for, should one still fast an equivalent number of days, or is the expiation enough at this stage? I am interested in the Sunni view in general. If providing an answer that is madhhab-specific, please mention which madhhab the view belongs to, but views from any or all madhhabs are welcome.