Bug1340: sync-lock should work when generating audio

src/effects/Effect.cpp

@@ -763,7 +763,6 @@ void Effect::SetDuration(double seconds)
    }
 
    mDuration = seconds;
-   mT1 = mT0 + mDuration;
 
    mIsSelection = false;
 

src/effects/Generator.h

@@ -69,7 +69,7 @@ protected:
                               sampleCount block) = 0;
 
    // Generate the track, one block at a time, & adding the results to tmp
-   bool GenerateTrack(WaveTrack *tmp, const WaveTrack &track, int ntrack);
+   bool GenerateTrack(WaveTrack *tmp, const WaveTrack &track, int ntrack) override;
 };
 
 #endif