human
Solve the following python programming problem given the following code:
def copy_fields_to_request(self, review_request) : 
    "Copies the draft information to the review request and updates the
        draft's change description.
        " 
    def update_list(a, b, name, record_changes = True, name_field = None) : 
        aset = set ([x.id for x in a.all ()]) 
        bset = set ([x.id for x in b.all ()]) 
        if aset.symmetric_difference (bset) : 
            if (record_changes and self.changedesc) : 
                self.changedesc.record_field_change (name, a.all (), b.all (), name_field) 
a.clear () 
            for item in b.all () : 
                a.add (item) 
for field_cls in get_review_request_fields () : 
        field = field_cls (review_request) 
        if field.can_record_change_entry : 
            old_value = field.load_value (review_request) 
            new_value = field.load_value (self) 
            if field.has_value_changed (old_value, new_value) : 
                field.save_value (new_value) 
                if self.changedesc : 
                    field.record_change_entry (self.changedesc, old_value, new_value) 
screenshots = list (self.screenshots.all ()) 
    caption_changes = { 
        
} 
    for s in review_request.screenshots.all () : 
        if ((s in screenshots) and (s.caption != s.draft_caption)) : 
            caption_changes [s.id] = { 
                'old' : (s.caption,), 
                'new' : (s.draft_caption,), 
} 
            s.caption = self.draft_caption 
            s.save (update_fields = ['caption']) 
for s in screenshots : 
        if (s.caption != s.draft_caption) : 
            s.caption = s.draft_caption 
            s.save (update_fields = ['caption']) 
if (caption_changes and self.changedesc) : 
        self.changedesc.fields_changed ['screenshot_captions'] = caption_changes 
update_list (review_request.screenshots, self.screenshots, 'screenshots', name_field = 'caption') 
    review_request.inactive_screenshots = self.inactive_screenshots.all () 
    files = list (self.file_attachments.all ()) 
   ...

    
    

    Fix the buggy line: s.caption = self.draft_caption
assistant
#Here is Python program to fix the buggy line: s.

s.caption = s.draft_caption