bindings/cxx: make sure the config value reference is kept

fixes glib warning:
GLib-CRITICAL **: g_variant_unref: assertion 'value->ref_count > 0' failed

diff --git a/bindings/cxx/classes.cpp b/bindings/cxx/classes.cpp
index 5cab6ac9919c4ff9249161f4decec004c21dea30..5eb3a750ddd14e2d12920ea7bd2839d306fd9a40 100644 (file)
--- a/bindings/cxx/classes.cpp
+++ b/bindings/cxx/classes.cpp
@@ -1140,7 +1140,7 @@ map<const ConfigKey *, Glib::VariantBase> Meta::config() const
        map<const ConfigKey *, Glib::VariantBase> result;
        for (auto l = _structure->config; l; l = l->next) {
                auto *const config = static_cast<struct sr_config *>(l->data);
-               result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
+               result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data, true);
        }
        return result;
 }