pct import: Reset clip region before closing the metafile.

Otherwise parts of the image are missing.

Change-Id: If9018c32807359862a9be825b0ebdaacce2d3490

filter/source/graphicfilter/ipict/ipict.cxx

@@ -1901,6 +1901,7 @@ void PictReader::ReadPict( SvStream & rStreamPict, GDIMetaFile & rGDIMetaFile )
         pPict->Seek(nPos);
     }
 
+    pVirDev->SetClipRegion();
     rGDIMetaFile.Stop();
     delete pVirDev;