Update TestNodeHierarchy to include a fuller FTN setup for testing. Update testing.

app/Models/Echomail.php

@@ -289,7 +289,7 @@ final class Echomail extends Model implements Packet
 	public function seenby()
 	{
 		return $this->belongsToMany(Address::class,'echomail_seenby')
-			->select(['id','zone_id','host_id','node_id'])
+			->select(['addresses.id','zone_id','host_id','node_id'])
 			->withPivot(['export_at','sent_at','sent_pkt'])
 			->dontCache()
 			->FTN2DOrder();