Automatic release notes don't work for certain release strategies

Hi,

First, thanks much for the new beta feature for automatically generating release notes. It’s an awesome idea.

One issue that we’re running into in my project is that the automatic release notes seems to inadvertently pick up all PRs since the beginning of the project (see: Release Version 0.4: Alpha MR1 · oppia/oppia-android · GitHub). I suspect that this is because my team’s release process is to cut release branches from our mainline & tag the ends of those release branches rather than tagging the main branch.

Is there any way to configure the release note generation to work for subsequent release tags that aren’t tied to the main branch? It didn’t seem like there was per the GitHub wiki. If not, please consider this a feature request or, if possible, provide instructions on how I can explicitly request this as a feature change for release note generation.

Thanks,
Ben