It’s actually not that interesting.
Game got suspended; guy got traded.
I am not certain on the specifics, but it had something to do with the count to Jansen when the 1st game was suspended.
If I understood it correctly, if instead of the 0-1 count to Jansen at the stoppage, it was 0-2, Jansen would have been the hitter of record for that at bat as well as being the catcher behind the plate for his own at bat.