To confirm the advice of the responses and provide visual feedback, I ran the following test in SONAR Platinum [2017.06].
1. Load audio clip.
2. Set a Volume envelope segment to -Inf
3. Set a different Clip Gain segment to -Inf
4. Execute Bounce to Clips.
The Clip after Bounce to Clips applied image clearly shows that only the Clip Gain automation is applied and NOT the volume automation, which confirms on my system that Bounce to Clips functions correctly.
Clip before Bounce to Clips applied:
Clip after Bounce to Clips applied:
Hope this helps,
-- Ron