Avoid setting the reply as member.

src/DownloadJob.cpp

@@ -18,9 +18,9 @@ void DownloadJob::start()
 {
     assert(m_sourceUrl.isValid());
     QNetworkRequest request(m_sourceUrl);
-    m_reply = m_net->get(request);
-    connect (m_reply, &QNetworkReply::finished, this, [=]() {
-        if (m_reply->error() != QNetworkReply::NoError) {
+    auto reply = m_net->get(request);
+    connect (reply, &QNetworkReply::finished, this, [=]() {
+        if (reply->error() != QNetworkReply::NoError) {
             // TODO mark file as not available somehow.
             logCritical() << "Download failed" << m_sourceUrl.toString();
         }
@@ -32,9 +32,11 @@ void DownloadJob::start()
             if (!out.open(QIODevice::WriteOnly)) {
                 logCritical() << "Opening file for writing failed" << m_targetFilePath;
             }
-            out.write(m_reply->readAll());
+            out.write(reply->readAll());
             out.flush();
         }
+        reply->deleteLater();
+        deleteLater();
         emit this->finished();
     });
 }

src/DownloadJob.h

@@ -27,7 +27,6 @@ private:
     QString m_targetFilePath;
     QUrl m_sourceUrl;
 
-    QNetworkReply *m_reply = nullptr;
     QNetworkAccessManager *m_net;
 };