Error in 7.2

select now() + cast('71 minutes' as interval) as case1
, cast('71 minutes' as interval) + now() as case2
, now() + cast('5 minutes' as interval) as case3
, cast('5 minutes' as interval) + now() as case4
, now();

The above works as expected in 7.1, but in 7.2 case1 and case2 have
different values. Appears hours to seconds are ignored if it's
interval + timestamp rather than timestamp + interval.