Comment by aledalgrande

I don't like this workflow, I see it as needlessly complicated. If you really can't cherry pick your big PR into simple branches to merge directly into master (which I rarely have seen over the years), create a longer lived branch and make small PRs to that. Then merge longer lived branch into master. You should never be going off and work on huge changes without keeping in sync with the base branch. Stacked PRs make all this more difficult.