@Override
    public void onUnknownPduReceived(final int src, final byte[] accessPayload) {
        final ProvisionedMeshNode node = mMeshNetwork.getNode(src);
        if (node != null) {
            updateNode(node);
        }
    }
Here we load all nodes except the current provisioner. This may contain other provisioner nodes if available
app/src/main/java/no/nordicsemi/android/nrfmesh/viewmodels/NrfMeshRepository.java