The suspended game that was completed tonight began on May 15, so it's the May 15 game and all records belong to May 15.
On May 15, Greg Bird was on the disabled list. He got a hit in the suspended game. So he winds up officially getting a hit while on the disabled list. (the same is true of the Nationals' Adam Eaton.) And Nationals OF Juan Soto officially hit a homer 5 days before his major league debut. (He was called up May 20.)
The wierdness of suspended games.