input/tidal: delete request objects upon completion

src/input/plugins/TidalInputPlugin.cxx

@@ -102,6 +102,8 @@ TidalInputStream::OnTidalTrackSuccess(std::string url) noexcept
 {
 	const std::lock_guard<Mutex> protect(mutex);
 
+	track_request.reset();
+
 	try {
 		SetInput(OpenCurlInputStream(url.c_str(), {},
 					     mutex, cond));

src/input/plugins/TidalSessionManager.cxx

@@ -74,6 +74,7 @@ TidalSessionManager::OnTidalLoginSuccess(std::string _session) noexcept
 {
 	{
 		const std::lock_guard<Mutex> protect(mutex);
+		login_request.reset();
 		session = std::move(_session);
 	}