X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESH_I%2FSMESH_Gen_i.cxx;h=2e11e27e580236fa7145fa8da347eea2a65ae923;hp=a32d4db78fd67900433e0f1a6bf434f5406e7f15;hb=77b01c6a801f64d91307f8fbedb6da13f075fd2e;hpb=776a610c849651350f344157ec7fbb170ca3e8cc

diff --git a/src/SMESH_I/SMESH_Gen_i.cxx b/src/SMESH_I/SMESH_Gen_i.cxx
index a32d4db78..2e11e27e5 100644
--- a/src/SMESH_I/SMESH_Gen_i.cxx
+++ b/src/SMESH_I/SMESH_Gen_i.cxx
@@ -2504,10 +2504,13 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::ListOfIDSources& theMeshesArray,
 
     // assure that IDs increments by one during iteration
     ::SMESH_Mesh& initLocMesh = initImpl->GetImpl();
-    SMESHDS_Mesh* initMeshDS = initLocMesh.GetMeshDS();
-    if ( initMeshDS->MaxNodeID()    != initMeshDS->NbNodes() ||
-         initMeshDS->MaxElementID() != initMeshDS->NbElements() )
+    SMESHDS_Mesh*  initMeshDS = initLocMesh.GetMeshDS();
+    if ( initMeshDS->MaxNodeID()    > initMeshDS->NbNodes() ||
+         initMeshDS->MaxElementID() > initMeshDS->NbElements() )
+    {
+      initMeshDS->Modified();
       initMeshDS->CompactMesh();
+    }
 
     // remember nb of elements before filling in
     SMESH::long_array_var prevState =  newMesh->GetNbElementsByType();