For the issue #1156 : do not cause Placement error on activation of previous Part...

[modules/shaper.git] / src / Model / Model_Document.cpp

diff --git a/src/Model/Model_Document.cpp b/src/Model/Model_Document.cpp
index c38a70f539def2dbfc863e351739a696681ce0b8..ec071b40300a35ca2d586f902764a204002897ed 100755 (executable)
--- a/src/Model/Model_Document.cpp
+++ b/src/Model/Model_Document.cpp
@@ -870,6 +870,8 @@ const int Model_Document::index(std::shared_ptr<ModelAPI_Object> theObject)
 
 int Model_Document::size(const std::string& theGroupID)
 {
+  if (myObjs == 0) // may be on close
+    return 0;
   return myObjs->size(theGroupID);
 }