Change order in UPlayer.detachId to avoid NPE.

src/com/massivecraft/factions/entity/UPlayerColl.java

@@ -42,15 +42,18 @@ public class UPlayerColl extends SenderColl<UPlayer>
 	@Override
 	public UPlayer detachId(Object oid)
 	{
-		UPlayer ret = super.detachId(oid);
+		UPlayer ret = this.get(oid);
 		if (ret == null) return null;
 		
 		// If inited ...
-		if (!this.inited()) return ret;
-		
+		if (this.inited())
+		{
 			// ... update the index.
 			Faction faction = ret.getFaction();
 			faction.uplayers.remove(ret);
+		}
+		
+		super.detachId(oid);
 	
 		return ret;
 	}

src/com/massivecraft/factions/listeners/FactionsListenerEcon.java

@@ -138,6 +138,7 @@ public class FactionsListenerEcon implements Listener
 		}
 		else if (event.getReason() == MembershipChangeReason.LEAVE)
 		{
+			// TODO: NPE once occurred on line below.
 			cost = UConf.get(event.getSender()).econCostLeave;
 			desc = "leave a faction";
 		}