fixed messages not redrawing after changing theme

src/widgets/basewidget.cpp

@@ -51,11 +51,15 @@ float BaseWidget::getDpiMultiplier()
 
 void BaseWidget::init()
 {
-    this->colorScheme.updated.connect([this]() {
+    auto connection = this->colorScheme.updated.connect([this]() {
         this->refreshTheme();
 
         this->update();
     });
+
+    QObject::connect(this, &QObject::destroyed, [connection] {
+        connection.disconnect();  //
+    });
 }
 
 void BaseWidget::initAsWindow()

src/widgets/settingsdialog.cpp

@@ -290,6 +290,8 @@ QVBoxLayout *SettingsDialog::createAppearanceTab()
             combo->setCurrentText(currentComboText);
 
             QObject::connect(combo, &QComboBox::currentTextChanged, this, [](const QString &value) {
+                // dirty hack
+                EmoteManager::getInstance().incGeneration();
                 pajlada::Settings::Setting<std::string>::set("/appearance/theme/name",
                                                              value.toStdString());
             });