Is May B2B sales to be shown in GSTR-1 if already filed via IFF? Same for HSN and document issued?

I have subscribed to the quarterly scheme. There were no transaction in April so I did not file IFF for April. But I did file IFF for May as I made some sales. Will these May invoice details need to be again declared in GSTR-1? And what about 'HSN' and 'document issued' sections? Are they to be filled with all three months' sales details or just June?