Use another ref on the producer when saving project (might help in case...

Use another ref on the producer when saving project (might help in case another operation is performed on the producer)

src/monitor/glwidget.cpp

@@ -1292,6 +1292,7 @@ void GLWidget::mouseReleaseEvent(QMouseEvent *event)
 void GLWidget::purgeCache()
 {
     if (m_consumer) {
+        //m_consumer->set("buffer", 1);
         m_consumer->purge();
         m_producer->seek(m_proxy->getPosition() + 1);
     }
@@ -1365,7 +1366,8 @@ const QString GLWidget::sceneList(const QString &root, const QString &fullPath)
     // Disabling meta creates cleaner files, but then we don't have access to metadata on the fly (meta channels, etc)
     // And we must use "avformat" instead of "avformat-novalidate" on project loading which causes a big delay on project opening
     // xmlConsumer.set("no_meta", 1);
-    xmlConsumer.connect(*m_producer.get());
+    Mlt::Service s(m_producer->get_service());
+    xmlConsumer.connect(s);
     xmlConsumer.run();
     playlist = fullPath.isEmpty() ? QString::fromUtf8(xmlConsumer.get("kdenlive_playlist")) : fullPath;
     return playlist;