X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSMESH%2FSMESH_MeshEditor.cxx;fp=src%2FSMESH%2FSMESH_MeshEditor.cxx;h=d06ce73062e66f972b1c4fb3220c5b04e0fb1362;hb=5e2c97c386dc03e51e072c7f9909803a86307872;hp=e9dbc5a32ed3b43bb4fa4cadc23a58de98833919;hpb=7f47e06b6cf4cd41902a43d5af10873325be774b;p=modules%2Fsmesh.git

diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx
index e9dbc5a32..d06ce7306 100644
--- a/src/SMESH/SMESH_MeshEditor.cxx
+++ b/src/SMESH/SMESH_MeshEditor.cxx
@@ -7168,8 +7168,11 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes,
     const SMDS_MeshNode* nToKeep = nnIt->second;
     TNodeNodeMap::iterator nnIt_i = nodeNodeMap.find( nToKeep );
     while ( nnIt_i != nodeNodeMap.end() && nnIt_i->second != nnIt->second )
+    {
       nToKeep = nnIt_i->second;
-    nnIt->second = nToKeep;
+      nnIt->second = nToKeep;
+      nnIt_i = nodeNodeMap.find( nToKeep );
+    }
   }
 
   if ( theAvoidMakingHoles )
@@ -8526,6 +8529,7 @@ SMESH_MeshEditor::SewFreeBorder (const SMDS_MeshNode* theBordFirstNode,
   for ( ; groupIt != nodeGroupsToMerge.end(); groupIt++ )
   {
     const list<const SMDS_MeshNode*>& nodes = *groupIt;
+    if ( nodes.front()->IsNull() ) continue;
     SMDS_ElemIteratorPtr segIt = nodes.front()->GetInverseElementIterator( SMDSAbs_Edge );
     while ( segIt->more() )
       segments.insert( segIt->next() );