run ok
put k=k v=v ts=1
----
>> at end:
data: "k"/1.000000000,0 -> /BYTES/v

run error
get k=k ts=-1
----
get: "k" -> <no data>
error: (*withstack.withStack:) cannot write to "k" at timestamp -1.000000000,0


run error
put k=k v=v ts=-1
----
>> at end:
data: "k"/1.000000000,0 -> /BYTES/v
error: (*withstack.withStack:) cannot write to "k" at timestamp -1.000000000,0
