Better handling of null guilds.

src/engine/objects/NPC.java

@@ -461,6 +461,8 @@ public class NPC extends AbstractCharacter {
 
         NPC newNPC = new NPC();
 
+        newNPC.parentZoneUUID = parent.getObjectUUID();
+
         newNPC.name = name;
         newNPC.contractUUID = contractID;
 
@@ -469,7 +471,9 @@ public class NPC extends AbstractCharacter {
         else
             newNPC.bindLoc = Vector3fImmutable.ZERO;
 
-        newNPC.parentZoneUUID = parent.getObjectUUID();
+        if (guild == null)
+            newNPC.guildUUID = 0;
+        else
             newNPC.guildUUID = guild.getObjectUUID();
 
         if (building == null)