AudioPlaylist::AudioPlaylist (Session& session, const XMLNode& node, bool hidden)
: Playlist (session, node, DataType::AUDIO, hidden)
{
+#ifndef NDEBUG
const XMLProperty* prop = node.property("type");
assert(!prop || DataType(prop->value()) == DataType::AUDIO);
+#endif
in_set_state++;
set_state (node, Stateful::loading_state_version);