Make sure m_isFetching is initialized when we use it

libdiscover/resources/ResourcesModel.cpp

@@ -51,6 +51,7 @@ ResourcesModel *ResourcesModel::global()
 ResourcesModel::ResourcesModel(QObject* parent, bool load)
     : QObject(parent)
     , m_initializingBackends(0)
+    , m_isFetching(false)
     , m_currentApplicationBackend(nullptr)
 {
     init(load);