Hi Joachim,
I am running the latest version of WP and Bbpress with the Themify Basic theme.
Before updating Content Aware Sidebars (CAS) to 2.0.2 I had a Bbpress specific forum sidebar replacing the primary sidebar.
Settings:
Exposure: Singular
Handle: Replace + sidebar
Merge Position: Top
I went through the new CAS admin interface and updated the new condition groups, but the forum sidebar is still not showing.