// We want to match any packages in existing dependencies, but we only want to
	// resolve new dependencies if nothing else turns up.
	for _, curM := range r.buildList {
		if !q.canMatchInModule(curM.Path) {
			continue
		}
		q.pathOnce(curM.Path, func() pathSet {
			if _, hit := r.noneForPath(curM.Path); hit {
				// This module is being removed, so it will no longer be in the build list