Stacked PR’s… don’t do that though? They’re just PR’s. You can merge just the first one in the stack, and now it’s not “all or nothing”. Reading the docs, I don’t see a way to signal that the PR’s must all merge together.
Because the most natural way of saying “these changes need to land atomically” is called a branch, and landing it atomically is called a “merge”. But I guess GH’s UI sucks for reviewing large changes, so we’re stuck having to make each change independently mergeable and pass tests (likely disabling dead-code lints, etc) just to work around this limitation. Sigh.
At least when I actually do want changes to be mergeable in a stack, I now have a better UX for having folks review them.