From 17dc26fe52e0ede26950071508efa3f5cdb58c82 Mon Sep 17 00:00:00 2001
From: Michael Bayne <mdb@threerings.net>
Date: Sat, 2 Apr 2011 04:04:00 +0000
Subject: [PATCH] More hackery preservation.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6587 542714f4-19e9-0310-aa3c-eee0fc999fb1
---
 .../threerings/presents/dobj/AttributeChangedEvent.java   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/java/com/threerings/presents/dobj/AttributeChangedEvent.java b/src/main/java/com/threerings/presents/dobj/AttributeChangedEvent.java
index c34c6fcc5..fe096ea53 100644
--- a/src/main/java/com/threerings/presents/dobj/AttributeChangedEvent.java
+++ b/src/main/java/com/threerings/presents/dobj/AttributeChangedEvent.java
@@ -157,6 +157,14 @@ public class AttributeChangedEvent extends NamedEvent
         _oldValue = oldValue;
     }
 
+    /** For unserialization. */
+    protected AttributeChangedEvent ()
+    {
+        super(0, null);
+        // we can't allow our primary ctor to be called during unserialization, or it will wipe out
+        // the hackery we do with _oldValue
+    }
+
     @Override
     protected void notifyListener (Object listener)
     {