# 
# patch "cvs_sync.cc"
#  from [0637cc5b2ac31337a534a1d2c8ff98934623a68b]
#    to [c9e276f671c3bfe027b418db8c0250c51b2af945]
# 
========================================================================
--- cvs_sync.cc	0637cc5b2ac31337a534a1d2c8ff98934623a68b
+++ cvs_sync.cc	c9e276f671c3bfe027b418db8c0250c51b2af945
@@ -1223,6 +1223,7 @@
   std::string result;
   for (std::set<revision_id>::const_iterator i=parents.begin();i!=parents.end();++i)
   { std::vector< revision<cert> > certs;
+    if (*i==revision_id()) continue;
     app.db.get_revision_certs(*i,certs);
     std::vector< revision<cert> >::const_iterator j=certs.begin();
     std::string to_match=create_cvs_cert_header();