Delay adding tracks to track containers until the constructor completes

src/core/Track.cpp

@@ -64,8 +64,7 @@ Track::Track( Type type, TrackContainer * tc ) :
 	m_mutedModel( false, this, tr( "Mute" ) ), /*!< For controlling track muting */
 	m_soloModel( false, this, tr( "Solo" ) ), /*!< For controlling track soloing */
 	m_clips()        /*!< The clips (segments) */
-{	
-	m_trackContainer->addTrack( this );
+{
 	m_height = -1;
 }
 
@@ -117,6 +116,8 @@ Track * Track::create( Type tt, TrackContainer * tc )
 		default: break;
 	}
 
+	tc->addTrack(t);
+
 	if (tc == Engine::patternStore() && t)
 	{
 		t->createClipsForPattern(Engine::patternStore()->numOfPatterns() - 1);