T48 removes existing contacts when provisioning

[KristianMedK]

Scenario is:

phone autoprovisions contacts among other settings.

i manualle create contacts.

when the phone autoprovisions again, the contacts i manualle created are removed IF there's changes in the xml file i link to in the new configurations.

It didn't matter if the xml had changed by having less or more contacts defined.

Can i do anything to avoid removing all contacts not in the xml when there's changes to it?

EDIT:
Is it intended behaviour deleting existing contacts prior to loading new ones doing provisioning?