Comment 6 for bug 1648547

Oh. That's exactly what it's expected to do. The point of the "Configure Code" form is to configure what Launchpad regards as the default branch/repository of the project. It is intentional that specifying a different branch/repository causes that to be regarded as the new default. If that's the only issue here, then I'd say that it's not a bug, unless perhaps there's some way we can make things clearer.