diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx
index 67d0c6069..ceaeb1acb 100644
--- a/src/SMESH/SMESH_MeshEditor.cxx
+++ b/src/SMESH/SMESH_MeshEditor.cxx
@@ -6771,8 +6771,8 @@ SMESH_MeshEditor::PGroupIDs SMESH_MeshEditor::Offset( TIDSortedElemSet & theElem
       meshDS->RemoveFreeElement( eIt->next(), 0 );
   }
 
-  offsetMesh->Modified();
-  offsetMesh->CompactMesh(); // make IDs start from 1
+  // offsetMesh->Modified();
+  // offsetMesh->CompactMesh(); // make IDs start from 1
 
   // source elements for each generated one
   SMESH_SequenceOfElemPtr srcElems, srcNodes;
diff --git a/src/SMESH/SMESH_subMesh.cxx b/src/SMESH/SMESH_subMesh.cxx
index a3b12c77e..7bab8d9e7 100644
--- a/src/SMESH/SMESH_subMesh.cxx
+++ b/src/SMESH/SMESH_subMesh.cxx
@@ -1683,6 +1683,8 @@ bool SMESH_subMesh::ComputeStateEngine(compute_event event)
           else
             updateDependantsState( SUBMESH_COMPUTED );
         }
+        // let algo clear its data gathered while algo->Compute()
+        algo->CheckHypothesis((*_father), _subShape, hyp_status);
       }
       break;
     case COMPUTE_CANCELED:               // nothing to do
diff --git a/src/SMESH_SWIG/smeshBuilder.py b/src/SMESH_SWIG/smeshBuilder.py
index b4c07b9f4..d0bb913c1 100755
--- a/src/SMESH_SWIG/smeshBuilder.py
+++ b/src/SMESH_SWIG/smeshBuilder.py
@@ -303,6 +303,8 @@ def AssureGeomPublished(mesh, geom, name=''):
     """
     Private method. Add geom (sub-shape of the main shape) into the study if not yet there
     """
+    if not mesh.smeshpyD.IsEnablePublish():
+        return
     if not isinstance( geom, geomBuilder.GEOM._objref_GEOM_Object ):
         return
     if not geom.GetStudyEntry():