Comment 3 for bug 617653

I have another use case which is to build from a branch that already has a debian/ structure, but I want to use my own from another packaging-only branch. Something like:

# bzr-builder format 0.3 deb-version {debupstream}+{revno}-0landscape1~{revno:packaging}
lp:txaws
nest-part packaging lp:~landscape/txaws/txaws-landscape-package debian debian

But a local "debian/" already exists, and the packaging branch only has "debian/". So I can't use merge, nor would I want to keep updating the packaging branch with code changes all the time.