Sounds loop in nested movieclips

We have found that if you skip over frames that include nested movieclips with embedded timeline sounds, those sounds loop endlessly.

For example, if you gotoAndStop(20) from frame 2, but frames 5-10 have a CLIP A that embeds CLIP B, which has a timeline sound, you hear that sound over and over again (even though the playback head never touched the frames with that clip).

Does anyone have a convenient workaround (other than the obvious – playing sounds dynamically, etc). For animation-sync reasons we need to use timeline sounds in this particular case.

Thanks!