fix: correct invalid condition in pkglists-options fix

We do not want to add existing lists multiple times but because condition was reverted no initial package list was added. This resulted in no package lists being migrated. Only options were.

This is unfortunate as we can't now correct those with alredy migrated configuration as we removed what we need at the end of this script. On the other hand only limited amount of users received this fix yet so no need to do so.