Issue #427, 420 - crash during work through external edges.

[modules/shaper.git] / src / Model / Model_Session.h

diff --git a/src/Model/Model_Session.h b/src/Model/Model_Session.h
index 0ae8bc46aa44fe763f82023531cb27bc3be7aed7..ac1e4e1b0e3f3b5f0d182233b9a7622f86a3d62a 100644 (file)
--- a/src/Model/Model_Session.h
+++ b/src/Model/Model_Session.h
@@ -48,7 +48,7 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   MODEL_EXPORT virtual void closeAll();
 
   //! Starts a new operation (opens a tansaction)
-  MODEL_EXPORT virtual void startOperation(const std::string& theId);
+  MODEL_EXPORT virtual void startOperation(const std::string& theId = "");
   //! Finishes the previously started operation (closes the transaction)
   MODEL_EXPORT virtual void finishOperation();
   //! Aborts the operation