Silence "could not fetch all IDs" warning when opening a PBaaS currency where not all IDs are expected to be fetchable

In some cases, a "could not fetch information about all related identities" warning will popup when a PBaaS currency is opened. In many of these situations it is because it is trying to fetch the parent ID of VRSCTEST, which does not exist. Eliminating this warning would make sure that the user knows that nothing is wrong.