Fix wrong thumbnails sometimes displayed

src/bin/projectclip.cpp

@@ -518,6 +518,8 @@ std::shared_ptr<Mlt::Producer> ProjectClip::thumbProducer()
             Mlt::Filter padder(*pCore->thumbProfile(), "resize");
             Mlt::Filter converter(*pCore->thumbProfile(), "avcolor_space");
             m_thumbsProducer->set("audio_index", -1);
+            // Required to make get_playtime() return > 1
+            m_thumbsProducer->set("out", m_thumbsProducer->get_length() -1);
             m_thumbsProducer->attach(scaler);
             m_thumbsProducer->attach(padder);
             m_thumbsProducer->attach(converter);

src/jobs/thumbjob.cpp

@@ -52,8 +52,6 @@ ThumbJob::ThumbJob(const QString &binId, int imageHeight, int frameNumber, bool
         m_binClip = pCore->projectItemModel()->getClipByBinID(binId);
     } else if (item->itemType() == AbstractProjectItem::SubClipItem) {
         m_subClip = true;
-        m_binClip = pCore->projectItemModel()->getClipByBinID(item->parent()->clipId());
-        m_frameNumber = std::max(m_frameNumber, std::static_pointer_cast<ProjectSubClip>(item)->zone().x());
     }
 }