From 1c3b8d413bb6e3c5addea3f21fa9dd54fbe86ac9 Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Mon, 17 Oct 2011 09:59:32 +0000
Subject: [PATCH] 0021096: EDF 1729 SMESH: Create a Projection 1D-2D algorithm

In CleanDependants(), do not call ComputeStateEngine(CLEAN) of a
dependant subMesh if it IsEmpty() in order to prevent infinite CLEAN
via event lesteners
---
 src/SMESH/SMESH_subMesh.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/SMESH/SMESH_subMesh.cxx b/src/SMESH/SMESH_subMesh.cxx
index 7f766cc43..fb86778c7 100644
--- a/src/SMESH/SMESH_subMesh.cxx
+++ b/src/SMESH/SMESH_subMesh.cxx
@@ -1818,7 +1818,8 @@ void SMESH_subMesh::CleanDependants()
       // will erase mesh on other shapes in a compound
       if ( ancestor.ShapeType() >= TopAbs_SOLID ) {
         SMESH_subMesh *aSubMesh = _father->GetSubMeshContaining(ancestor);
-        if (aSubMesh)
+        if (aSubMesh &&
+            !aSubMesh->IsEmpty() ) // prevent infinite CLEAN via event lesteners
           aSubMesh->ComputeStateEngine(CLEAN);
       }
     }