Address some issues regarding private torrents

src/base/bittorrent/torrenthandleimpl.cpp

@@ -432,6 +432,11 @@ void TorrentHandleImpl::replaceTrackers(const QVector<TrackerEntry> &trackers)
 
         if (!newTrackers.isEmpty())
             m_session->handleTorrentTrackersAdded(this, newTrackers);
+
+        // Clear the peer list if it's a private torrent since
+        // we do not want to keep connecting with peers from old tracker.
+        if (isPrivate())
+            clearPeers();
     }
 }
 
@@ -486,6 +491,13 @@ void TorrentHandleImpl::removeUrlSeeds(const QVector<QUrl> &urlSeeds)
         m_session->handleTorrentUrlSeedsRemoved(this, removedUrlSeeds);
 }
 
+void TorrentHandleImpl::clearPeers()
+{
+#if (LIBTORRENT_VERSION_NUM >= 10207)
+    m_nativeHandle.clear_peers();
+#endif
+}
+
 bool TorrentHandleImpl::connectPeer(const PeerAddress &peerAddress)
 {
     lt::error_code ec;