AX 2012 data migration framework employees

I am importing employees of types “employee” as well as “contractor”.

however, all records are being imported in HcmEmploymentEmployee as well as HcmEmploymentContractor,regardless of the type of employment.

furthermore, records are being created in tables like “HcmEmploymentAbsenceSetup” when i did not specify any values related to those tables.

is that a normal behavior? if not, what is a workaround, or a hotfix i can use to resolve this issue?