Un-overload HelperProxy::progressStep() signal
By renaming HelperProxy::progressStep(const QString &, const QVariantMap &) to HelperProxy::progressStepData(const QString &, const QVariantMap &). IIUC, this is a signal in a non-exported class.
By renaming HelperProxy::progressStep(const QString &, const QVariantMap &) to HelperProxy::progressStepData(const QString &, const QVariantMap &). IIUC, this is a signal in a non-exported class.