Fix AL_INVALID_NAME when exit pause menu with fast music on

src/audio/music_ogg.cpp

@@ -235,14 +235,14 @@ bool MusicOggStream::pauseMusic()
 //-----------------------------------------------------------------------------
 bool MusicOggStream::resumeMusic()
 {
-    m_playing.store(true);
-
     if (m_fileName == "")
     {
         // nothing is loaded
         return true;
     }
 
+    m_playing.store(true);
+
     alSourcePlay(m_soundSource);
     m_pausedMusic= false;
     return true;