SVN commit 631369 by okellogg:

resolveRef(): If the m_SecondaryId is not found then interpret it as
  the name of the type.
loadFromXMI(): If the stereotype ID is not found by then interpret it as
  the name of the stereotype.
These changes improve the loading of files from previous Umbrello versions.
CCBUG:141279


 M  +14 -11    umlobject.cpp  


--- branches/KDE/3.5/kdesdk/umbrello/umbrello/umlobject.cpp #631368:631369
@@ -414,10 +414,13 @@
         }
     }
     if (m_SecondaryFallback.isEmpty()) {
-        kError() << "UMLObject::resolveRef(" << m_Name
-                  << "): cannot find type with id "
-                  << m_SecondaryId << endl;
-        return false;
+        if (m_SecondaryId.isEmpty()) {
+            kError() << "UMLObject::resolveRef(" << m_Name
+                << "): both m_SecondaryId and m_SecondaryFallback are empty"
+                << endl;
+            return false;
+        }
+        m_SecondaryFallback = m_SecondaryId;
     }
 #ifdef VERBOSE_DEBUGGING
     kDebug() << "UMLObject::resolveRef(" << m_Name 
@@ -435,7 +438,6 @@
         maybeSignalObjectCreated();
         return true;
     }
-    //pDoc->setIsOldFile(true);
     // Work around Object_Factory::createUMLObject()'s incapability
     // of on-the-fly scope creation:
     if (m_SecondaryId.contains("::")) {
@@ -458,8 +460,7 @@
                   << "failed to create a new type for " << m_SecondaryId << endl;
         return false;
     }
-    kDebug() << "UMLObject::resolveRef: Creating new type for "
-    << m_SecondaryId << endl;
+    kDebug() << "UMLObject::resolveRef: Creating new type for " << m_SecondaryId << endl;
     // This is very C++ specific - we rely on  some '*' or
     // '&' to decide it's a ref type. Plus, we don't recognize
     // typedefs of ref types.
@@ -594,12 +595,14 @@
     if (!stereo.isEmpty()) {
         Uml::IDType stereoID = STR2ID(stereo);
         m_pStereotype = umldoc->findStereotypeById(stereoID);
-        if (m_pStereotype)
+        if (m_pStereotype) {
             m_pStereotype->incrRefCount();
-        else
-            kError() << "UMLObject::loadFromXMI(" << m_Name << "): "
+        } else {
+            kDebug() << "UMLObject::loadFromXMI(" << m_Name << "): "
                 << "UMLStereotype " << ID2STR(stereoID)
-                << " not found" << endl;
+                << " not found, creating now." << endl;
+            setStereotype(stereo);
+        }
     }
 
     if( element.hasAttribute("abstract") ) {     // for bkwd compat.

Does not crash with current HEAD of branches/KDE/3.5/kdesdk/umbrello.

SVN commit 667185 by okellogg:

resolveRef(): When m_SecondaryId cannot be resolved and m_SecondaryFallback
is empty then set m_pSecondary to the artificial datatype "undef".
This is somewhat less friendly on loading older Umbrello files but avoids
the creation of bogus objects.
The better way to solve this bug would be to warn the user when he attempts
to delete model objects that are still referenced somewhere in the model
but I'm afraid I cannot implement that right now.
CCBUG:141279
BUG:145709


 M  +1 -0      ChangeLog  
 M  +12 -7     umbrello/umlobject.cpp  


--- branches/KDE/3.5/kdesdk/umbrello/ChangeLog #667184:667185
@@ -1,6 +1,7 @@
 Version 1.5.71
 
 * Bugs/wishes from http://bugs.kde.org:
+* Unstable saves and loads, class names become dirty (145709)
 * Crash on deleting class in list view (145762)
 
 Version 1.5.7
--- branches/KDE/3.5/kdesdk/umbrello/umbrello/umlobject.cpp #667184:667185
@@ -414,16 +414,21 @@
             maybeSignalObjectCreated();
             return true;
         }
-    }
-    if (m_SecondaryFallback.isEmpty()) {
-        if (m_SecondaryId.isEmpty()) {
-            kError() << "UMLObject::resolveRef(" << m_Name
-                << "): both m_SecondaryId and m_SecondaryFallback are empty"
-                << endl;
-            return false;
+        if (m_SecondaryFallback.isEmpty()) {
+            kDebug() << "UMLObject::resolveRef: object with xmi.id=" << m_SecondaryId
+                << " not found, setting to undef" << endl;
+            UMLFolder *datatypes = pDoc->getDatatypeFolder();
+            m_pSecondary = Object_Factory::createUMLObject(Uml::ot_Datatype, "undef", datatypes, false);
+            return true;
         }
         m_SecondaryFallback = m_SecondaryId;
     }
+    if (m_SecondaryFallback.isEmpty()) {
+        kError() << "UMLObject::resolveRef(" << m_Name
+            << "): cannot find type with id "
+            << m_SecondaryId << endl;
+        return false;
+    }
 #ifdef VERBOSE_DEBUGGING
     kDebug() << "UMLObject::resolveRef(" << m_Name
               << "): could not resolve secondary ID " << m_SecondaryId