comparison data/model/Model.cpp @ 371:d77e1fa49e26

* More work on aligning copy/paste between layers.  It's a surprisingly
  complicated business.

 const Model *
 Model::getAlignmentReference() const
 {
     if (!m_alignment) {
         if (m_sourceModel) return m_sourceModel->getAlignmentReference();
-        return this;
+        return 0;
     }
     return m_alignment->getReferenceModel();
 }
 
 size_t