2 files changed, 7 insertions, 3 deletions

diff --git a/include/opkele/types.h b/include/opkele/types.h
index af7fb1a..ffb9afb 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -129,6 +129,7 @@ namespace opkele {
             virtual ~basic_openid_message() { }
             basic_openid_message(const basic_openid_message& x);
             void copy_to(basic_openid_message& x) const;
+            void append_to(basic_openid_message& x) const;
 
             virtual bool has_field(const string& n) const = 0;
             virtual const string& get_field(const string& n) const = 0;
diff --git a/lib/openid_message.cc b/lib/openid_message.cc
index 4b9179b..e244f43 100644
--- a/lib/openid_message.cc
+++ b/lib/openid_message.cc
@@ -16,9 +16,7 @@ namespace opkele {
             basic_openid_message& to;
 
             __om_copier(basic_openid_message& t,const basic_openid_message& f)
-                : from(f), to(t) {
-                    to.reset_fields();
-                }
+                : from(f), to(t) { }
 
             result_type operator()(argument_type f) {
                 to.set_field(f,from.get_field(f)); }
@@ -28,6 +26,11 @@ namespace opkele {
         x.copy_to(*this);
     }
     void basic_openid_message::copy_to(basic_openid_message& x) const {
+        x.reset_fields();
+        for_each(fields_begin(),fields_end(),
+                __om_copier(x,*this) );
+    }
+    void basic_openid_message::append_to(basic_openid_message& x) const {
         for_each(fields_begin(),fields_end(),
                 __om_copier(x,*this) );
     }