Comment 3 for bug 1000807

Can't remember the track this originally happened on, but here's one where the offset was correct (at 0) and Mixxx detected a new one in the wrong spot. Is 0 not allowed?

Debug [Main]: New BeatGrid
Debug [Main]: Successfully deserialized BeatGrid
Debug [AnalyserQueue 1]: Prioritizing "What A Feeling feat. Kelly Rowland (Hardwell Club Mix)" "/media/Music&Video/DJ Pegasus/1852050_What_A_Feeling_feat__Kelly_Rowland_Hardwell_Club_Mix.aiff"
Debug [AnalyserQueue 1]: Analyzing "What A Feeling feat. Kelly Rowland (Hardwell Club Mix)" "/media/Music&Video/DJ Pegasus/1852050_What_A_Feeling_feat__Kelly_Rowland_Hardwell_Club_Mix.aiff"
Debug [AnalyserQueue 1]: AnalysisDAO fetched 0 analyses, 0 bytes for track 5470 in 1 ms
Debug [AnalyserQueue 1]: Beat calculation skips analyzing because the track has a BPM computed by a previous Mixxx version and user preferences indicate we should not change it.
Debug [AnalyserQueue 1]: First beat is 0 for grid so analyzing track to find first beat.
Debug [AnalyserQueue 1]: Beat calculation started with plugin "qm-tempotracker:0"
Debug [AnalyserQueue 1]: Vampanalyser BlockSize: 1024
Debug [AnalyserQueue 1]: Vampanalyser StepSize: 512
Note: nonZeroCount was 39123, is now 39123
Debug [AnalyserQueue 1]: Done building waveform for track 5470
Debug [AnalyserQueue 1]: Writing waveform from byte array: dataSize 400622 allSignalSize 400622 visualSampleRate 441 audioVisualRatio 100
Debug [AnalyserQueue 1]: AnalysisDAO saved analysis 33 "3236232 (915496 compressed)" bytes for track 5470 in 386 ms
Debug [AnalyserQueue 1]: Saved waveform analysis for trackId 5470 analysisId 33
Debug [AnalyserQueue 1]: Writing waveform from byte array: dataSize 3842 allSignalSize 3842 visualSampleRate 4.22738 audioVisualRatio 10432
Debug [AnalyserQueue 1]: AnalysisDAO saved analysis 34 "30822 (8807 compressed)" bytes for track 5470 in 137 ms
Debug [AnalyserQueue 1]: Saved waveform summary analysis for trackId 5470 analysisId 34
Debug [AnalyserQueue 1]: Waveform generation done 42.561 s
Debug [AnalyserQueue 1]: Beat Calculation complete
Debug [AnalyserQueue 1]: New BeatGrid