while (mboxes.hasNext()) {
Statement current = mboxes.nextStatement();
current.getResource().removeProperties();
}
mboxes.close();
existingAgent.removeProperties();
// Remove properties of mboxes
// no need, as this has already been done by IFPPResolver
// JenaUtil.replace(importing, agent, existingAgent);
agent = (Resource) existingAgent.inModel(importing);
addParticipants(existingAgent); // reconstruct