clear TOC and document info when closing a textdocument-based document

svn path=/trunk/KDE/kdegraphics/okular/; revision=798886

core/textdocumentgenerator.cpp

@@ -289,6 +289,9 @@ bool TextDocumentGenerator::doCloseDocument()
     d->mLinkPositions.clear();
     d->mLinkInfos.clear();
     d->mAnnotationInfos.clear();
+    // do not use clear() for the following two, otherwise they change type
+    d->mDocumentInfo = Okular::DocumentInfo();
+    d->mDocumentSynopsis = Okular::DocumentSynopsis();
 
     return true;
 }