# 1. print shows both primary and secondary dates. The second's year defaults to the first's.
hledger -f - print
<<<
2000/1/1=3/3
  (a)  1

2000/1/2=2/2
  (b)  1

>>>
2000/01/01=2000/03/03
    (a)               1

2000/01/02=2000/02/02
    (b)               1

>>>2
>>>= 0

# 2. With --date2, the secondary date is used for sorting.
hledger -f - print --date2
<<<
2000/1/1=3/3
  (a)  1

2000/1/2=2/2
  (b)  1

>>>
2000/01/02=2000/02/02
    (b)               1

2000/01/01=2000/03/03
    (a)               1

>>>2
>>>= 0