Bug Report Sync-offset Audio and Compressor Filter

[kiichan]

System: Debian Testing, x86_64, building from git:

HEAD 30d967eafa13fcf7179585017bf432ce9cda1ac2

Issue: Adding a sync offset to an audio source delays the playback of the audio, however it does not delay it as a sidechain source, causing audio ducking to behave improperly.

Steps to reproduce:

1. Create two audio sources, A and B
2. Add an arbitrary sync offset to source A using the Advanced Audio Properties dialog
3. Add a compressor filter to source B
   
4. Set the sidechain source to A

Expected behavior: The audio is delayed by the offset, also delaying the sidechain compression.
Exhibited behavior: The sidechain compression lowers the audio track on source B when source A is received, before being delayed. The result is B's ducking losing synchronization with source A's input.

Edit: Also submitted as a bug report