0021480: EDF 2084 SMESH: SIGSEGV when validating Netgen3D hypothesis

  In ~TPreviewMesh(), nullify _myMeshDS after destruction

diff --git a/src/SMESH_I/SMESH_MeshEditor_i.cxx b/src/SMESH_I/SMESH_MeshEditor_i.cxx
index 981a90ac9c17f039ece51bdb9be6b158b9c9f755..448eef042c0a014d8b3d98be969ac156dad118a7 100644 (file)
--- a/src/SMESH_I/SMESH_MeshEditor_i.cxx
+++ b/src/SMESH_I/SMESH_MeshEditor_i.cxx
@@ -94,7 +94,7 @@ namespace {
       myPreviewType = previewElements;
     }
     //!< Destructor
-    virtual ~TPreviewMesh() { delete _myMeshDS; }
+    virtual ~TPreviewMesh() { delete _myMeshDS; _myMeshDS = 0; }
     //!< Copy a set of elements
     void Copy(const TIDSortedElemSet & theElements,
               TIDSortedElemSet&        theCopyElements,