Timestamp --> Datetime insert: milliseconds are wrongly inserted in CS

Using PDI bulk adapter the following issue is found:
1. PDI type Timstamp is loaded into CS Datetime field using CSV file.
2. The value of the field is 2018-01-01 00:00:01.220
and this field should be loaded in CS DATETIME (6) field.

Result observed in CS after load is:
2018/01/01 00:00:01.000022000

Expected:
2018/01/01 00:00:01.220000000

Notes:
I tried with direct insert into CS and this works correctly.
So issue lays somewhere in PDI adapter or api.

PDI job script is attached.
@Jens, could you please add it to automated tests?