Bazaar Package Importer stomps on my changes

[Scott Moser]

I assume that I am either
a.) misinformed
b.) doing something wrong.

Now to my question/problem.

I was under the impression that it was an acceptable (and even commonly
used package development model) to do something like:

$ bzr init-repo cloud-init
$ cd cloud-init
$ bzr branch lp:ubuntu/natty/cloud-init natty.dist
$ bzr branch natty.dist natty
$ cd natty
# hack and add something
# dch -i, use 'UNRELEASED'
# debcommit
# hack and add something, use dch -i,
# ...
$ dch --release
$ debcommit -r
$ bzr bd -S
$ dput ../*.changes
$ bzr push lp:ubuntu/natty/cloud-init

Maybe I'm  misinformed, and something I'm doing above is wrong or
completely misguided.

However, I happily push my changes, upload the source package, and then
repeat the above process.

The next time I go to do it, I'm informed on bzr push (or bzr pull) that I
have missing revisions.

I'll be missing something like:
  revno: 61
  fixes bug(s): https://launchpad.net/bugs/635188
  author: Scott Moser <smoser at ubuntu.com>
  committer: Bazaar Package Importer <james.westby at ubuntu.com>
  branch nick: natty
  timestamp: Thu 2011-01-27 11:32:44 -0500


So it appears to me that Mr or Ms "Bazaar Package Importer" is rudely
stomping on my changes.

Am I just doing something wrong ?