crashtesting: fdo73974-1.doc assert on reexport to doc

try setting DefaultParentBaseURL based on the parent BaseURL
for objects created this way

Change-Id: Idfc44d90e4f73f23976e8648c504786955b4fce6

comphelper/source/container/embeddedobjectcontainer.cxx

@@ -589,7 +589,7 @@ uno::Reference < embed::XEmbeddedObject > EmbeddedObjectContainer::InsertEmbedde
     return xRet;
 }
 
-uno::Reference < embed::XEmbeddedObject > EmbeddedObjectContainer::InsertEmbeddedObject( const css::uno::Sequence < css::beans::PropertyValue >& aMedium, OUString& rNewName )
+uno::Reference < embed::XEmbeddedObject > EmbeddedObjectContainer::InsertEmbeddedObject( const css::uno::Sequence < css::beans::PropertyValue >& aMedium, OUString& rNewName, OUString const* pBaseURL )
 {
     if ( rNewName.isEmpty() )
         rNewName = CreateUniqueObjectName();
@@ -598,9 +598,14 @@ uno::Reference < embed::XEmbeddedObject > EmbeddedObjectContainer::InsertEmbedde
     try
     {
         uno::Reference < embed::XEmbeddedObjectCreator > xFactory = embed::EmbeddedObjectCreator::create( ::comphelper::getProcessComponentContext() );
-        uno::Sequence< beans::PropertyValue > aObjDescr( 1 );
+        uno::Sequence< beans::PropertyValue > aObjDescr(pBaseURL ? 2 : 1);
         aObjDescr[0].Name = "Parent";
         aObjDescr[0].Value <<= pImpl->m_xModel.get();
+        if (pBaseURL)
+        {
+            aObjDescr[1].Name = "DefaultParentBaseURL";
+            aObjDescr[1].Value <<= *pBaseURL;
+        }
         xObj.set( xFactory->createInstanceInitFromMediaDescriptor(
                 pImpl->mxStorage, rNewName, aMedium, aObjDescr ), uno::UNO_QUERY );
         uno::Reference < embed::XEmbedPersist > xPersist( xObj, uno::UNO_QUERY );

filter/source/msfilter/msdffimp.cxx

@@ -6947,7 +6947,7 @@ css::uno::Reference < css::embed::XEmbeddedObject >  SvxMSDffManager::CheckForCo
 
             OUString aName( aDstStgName );
             comphelper::EmbeddedObjectContainer aCnt( rDestStorage );
-            xObj = aCnt.InsertEmbeddedObject( aMedium, aName );
+            xObj = aCnt.InsertEmbeddedObject(aMedium, aName, &rBaseURL);
 
             if ( !xObj.is() )
             {
@@ -6955,7 +6955,7 @@ css::uno::Reference < css::embed::XEmbeddedObject >  SvxMSDffManager::CheckForCo
                 {
                     // throw the filter parameter away as workaround
                     aMedium.realloc( 2 );
-                    xObj = aCnt.InsertEmbeddedObject( aMedium, aName );
+                    xObj = aCnt.InsertEmbeddedObject(aMedium, aName, &rBaseURL);
                 }
 
                 if ( !xObj.is() )

include/comphelper/embeddedobjectcontainer.hxx

@@ -110,7 +110,7 @@ public:
     // load an embedded object from a MediaDescriptor and insert it into the container
     // a new object will be created from the new content and returned
     css::uno::Reference < css::embed::XEmbeddedObject >
-                        InsertEmbeddedObject( const css::uno::Sequence < css::beans::PropertyValue >&, OUString& );
+                        InsertEmbeddedObject( const css::uno::Sequence < css::beans::PropertyValue >&, OUString& rName, OUString const* pBaseURL = nullptr);
 
     // create an embedded link based on a MediaDescriptor and insert it into the container
     // a new object will be created from the new content and returned