[Audacity-devel] Preview fails when selection extends before zero (regression)

[Steve t. F. <ste...@gm...>]

Raising this here for RM to decide if he wants to fix this.

To reproduce:
1) Generate some audio
2) Time shift so that it starts before zero
(note that tracks always start before zero when overdubbing)
3) Select all
4) Preview any non-RTP effect (for example, Amplify).
Big scary bug message!

The error message is due to the THROW_INCONSISTENCY_EXCEPTION in
WaveTrack::InsertSilence()
but we can't just return from there, because we still need to set the
clip offset.

Steve