embeddedobj: add a comment why the original size is restored

... in OCommonEmbeddedObject::getPreferredVisualRepresentation()

Change-Id: I326b7df4350f34fc9a1c363ea0e9bc77d8f1e976

embeddedobj/source/commonembedding/visobj.cxx

@@ -174,6 +174,8 @@ embed::VisualRepresentation SAL_CALL OCommonEmbeddedObject::getPreferredVisualRe
     bool bBackToLoaded = false;
     if ( m_nObjectState == embed::EmbedStates::LOADED )
     {
+        // restore original VisualAreaSize, because writer objects set
+        // themselves to a default size OLESIZE
         awt::Size aOrigSize = getVisualAreaSize(nAspect);
         changeState(embed::EmbedStates::RUNNING);
         if (aOrigSize != getVisualAreaSize(nAspect))