From 29af56dab3285fded22467b727faa0e97af7ada8 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 1 Sep 2010 17:45:07 +0200
Subject: Drop DOM association if node is copy-assigned to

---
 libxsd/xsd/cxx/tree/elements.hxx | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/libxsd/xsd/cxx/tree/elements.hxx b/libxsd/xsd/cxx/tree/elements.hxx
index 805b32a..09e86b6 100644
--- a/libxsd/xsd/cxx/tree/elements.hxx
+++ b/libxsd/xsd/cxx/tree/elements.hxx
@@ -377,7 +377,17 @@ namespace xsd
         type&
         operator= (const type& x)
         {
-          while (&x == 0) /* unused */;
+          if (this != &x)
+          {
+            // Drop DOM association.
+            //
+            if (dom_info_.get ())
+            {
+              std::auto_ptr<dom_info> r (0);
+              dom_info_ = r;
+            }
+          }
+
           return *this;
         }
 
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