Fix for the issue #2300: Wrong ExtrusionCut result

diff --git a/src/Model/Model_BodyBuilder.cpp b/src/Model/Model_BodyBuilder.cpp
index 9d4fa071f8d0ac58404226a72df520b2e64ae11c..24acebc1736d86712342fb8787224d2df1ec5291 100755 (executable)
--- a/src/Model/Model_BodyBuilder.cpp
+++ b/src/Model/Model_BodyBuilder.cpp
@@ -270,6 +270,8 @@ void Model_BodyBuilder::clean()
     }
   }
   myBuilders.clear();
+  // remove the old reference (if any)
+  aLab.ForgetAttribute(TDF_Reference::GetID());
 }
 
 Model_BodyBuilder::~Model_BodyBuilder()