From 0a44a5b60df768b9a60f1c51612c3c5c5f55f91b Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 2 May 2014 12:03:52 +0200
Subject: [PATCH] + Remove external geometry when changing support face

---
 src/Mod/Sketcher/App/SketchObject.cpp | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 062629442a..71503392c1 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -1584,11 +1584,10 @@ void SketchObject::onChanged(const App::Property* prop)
     else if (prop == &Support) {
         // make sure not to change anything while restoring this object
         if (!isRestoring()) {
-            // if support face was cleared then also clear the external geometry
-            if (!Support.getValue()) {
-                std::vector<DocumentObject*> obj;
-                std::vector<std::string> sub;
-                ExternalGeometry.setValues(obj, sub);
+            // if support face has changed then clear the external geometry
+            delConstraintsToExternal();
+            for (int i=0; i < getExternalGeometryCount(); i++) {
+                delExternal(0);
             }
         }
     }