Fix sample track playback crash (#4586)

Fixes double-freeing `AudioPort` which is a regression in #4310.

Co-authored-by: Shmuel H <shmuelhazan0@gmail.com>
Co-authored-by: Hyunjin Song <tteu.ingog@gmail.com>

include/SamplePlayHandle.h

@@ -1,8 +1,9 @@
+
 /*
  * SamplePlayHandle.h - play-handle for playing a sample
  *
  * Copyright (c) 2005-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
- * 
+ *
  * This file is part of LMMS - https://lmms.io
  *
  * This program is free software; you can redistribute it and/or
@@ -38,7 +39,7 @@ class AudioPort;
 class SamplePlayHandle : public PlayHandle
 {
 public:
-	SamplePlayHandle( SampleBuffer* sampleBuffer );
+	SamplePlayHandle( SampleBuffer* sampleBuffer , bool ownAudioPort = true );
 	SamplePlayHandle( const QString& sampleFile );
 	SamplePlayHandle( SampleTCO* tco );
 	virtual ~SamplePlayHandle();