Toplevel regression analysis needs toplevel original/new source versions

In the recap regression analysis data here: https://debusine.debian.net/debian/developers/work-request/235012/#internals

I can get original/new versions for each packages tested, but (like in the case of rev-dep autopkgtest) they don't always correspond to the original/new versions of the whole regression testing.

Given that I need that information for the table headers in https://freexian-team.pages.debian.net/debusine/reference/devel-blueprints/regression-tracking.html#about-the-ui-to-display-regression-analysis and it's hard to work it out after the fact, is it possible to have it somewhere in the QA workflow data/output data?