Fix crash on application exit (Qt 6.5)

PR #19169.

src/app/signalhandler.cpp

@@ -43,6 +43,7 @@
 #endif
 
 #include <QCoreApplication>
+#include <QMetaObject>
 
 #include "base/version.h"
 
@@ -89,7 +90,7 @@ namespace
         const char *msgs[] = {"Catching signal: ", sysSigName[signum], "\nExiting cleanly\n"};
         std::for_each(std::begin(msgs), std::end(msgs), safePrint);
         signal(signum, SIG_DFL);
-        QCoreApplication::exit();  // unsafe, but exit anyway
+        QMetaObject::invokeMethod(qApp, [] { QCoreApplication::exit(); }, Qt::QueuedConnection);  // unsafe, but exit anyway
     }
 
 #ifdef STACKTRACE

src/base/torrentfileswatcher.cpp

@@ -138,7 +138,7 @@ TorrentFilesWatcher *TorrentFilesWatcher::instance()
 }
 
 TorrentFilesWatcher::TorrentFilesWatcher(QObject *parent)
-    : QObject {parent}
+    : QObject(parent)
     , m_ioThread {new QThread}
 {
     const auto *btSession = BitTorrent::Session::instance();
@@ -159,7 +159,7 @@ void TorrentFilesWatcher::initWorker()
     connect(m_asyncWorker, &TorrentFilesWatcher::Worker::torrentFound, this, &TorrentFilesWatcher::onTorrentFound);
 
     m_asyncWorker->moveToThread(m_ioThread.get());
-    connect(m_ioThread.get(), &QThread::finished, m_asyncWorker, &QObject::deleteLater);
+    connect(m_ioThread.get(), &QThread::finished, this, [this] { delete m_asyncWorker; });
     m_ioThread->start();
 
     for (auto it = m_watchedFolders.cbegin(); it != m_watchedFolders.cend(); ++it)