From 5773ab35a3e889f08febe42a1a2e933421fe8a67 Mon Sep 17 00:00:00 2001
From: "pnunn%netscape.com"
 <pnunn%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Thu, 13 Jan 2000 23:01:11 +0000
Subject: [PATCH] bug#12722: timer interacting with image groups. pnunn. rev:
 neeti@netscape.com

git-svn-id: svn://10.0.0.236/trunk@57699 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/gfx/src/nsImageNetContextAsync.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mozilla/gfx/src/nsImageNetContextAsync.cpp b/mozilla/gfx/src/nsImageNetContextAsync.cpp
index e067d630380..187ddba998a 100644
--- a/mozilla/gfx/src/nsImageNetContextAsync.cpp
+++ b/mozilla/gfx/src/nsImageNetContextAsync.cpp
@@ -489,6 +489,11 @@ ImageNetContextImpl::Clone()
   ilINetContext *cx;
   nsCOMPtr<nsILoadGroup> group = do_QueryReferent(mLoadGroup);
 
+  //mReconnectArg is ImageGroup. If GetURL is triggered
+  //by timer for animation, ImageGroup may have been unloaded
+  //before timer kicks off.
+  mReconnectCallback=nsnull; mReconnectArg=nsnull;
+
   if (NS_NewImageNetContext(&cx, group, mReconnectCallback, mReconnectArg) == NS_OK)
   {
     return cx;