With juju-core 1.17+, the wrong version of django gets installed

When using 1.17+ you get python-django installed at 1.3.1 (the precise version).. When using juju-core 1.16.x you get the proper 1.5.x version of python-django. This causes us problems... The reasoning is explained below by hazmat..

2014-02-22 18:54:58 The following units had errors:
   unit: ts-django/0: machine: 12 agent-state: error details: hook failed: "pgsql-relation-changed"
unit: ppa-django/0: machine: 7 agent-state: error details: hook failed: "pgsql-relation-changed"
2014-02-22 18:54:58 Deployment stopped. run time: 579.01
Problem deploying "ci-airline-staging": Command '['juju-deployer', '-v', '-c', '/tmp/tmprRm4Lm/deployer/juju-gui.yaml', '-c', '/tmp/tmprRm4Lm/deployer/test-runner.yaml', '-c', '/tmp/tmprRm4Lm/deployer/ticket-system.yaml', '-c', '/tmp/tmprRm4Lm/deployer/production-only.yaml', '-c', '/tmp/tmprRm4Lm/deployer/ppa-assigner.yaml', '-c', '/tmp/tmprRm4Lm/deployer/relations.yaml', '-c', '/tmp/tmprRm4Lm/deployer/branch-source-builder.yaml', '-c', '/tmp/tmprRm4Lm/deployer/image-builder.yaml', '-c', '/tmp/tmprRm4Lm/deployer/lander.yaml', 'ci-airline-staging']' returned non-zero exit status 1

18:22:36 cjohnston | hazmat: question for you... I haven't investigated much with this yet... when using core 1.17+ to deploy our
                      | stuff, I have an issue... we deploy the python-django charm.. for some reason, django stays on 1.3.1 (the
                      | precise version) which causes an error when running the postgres changed hook. If I downgrade to core 1.16.6,
                      | python-django is the correct version and works.. have you seen/heard of anything like
18:22:36 cjohnston | that
18:23:24 cjohnston | when deployed with 1.17+ if I juju ssh into the instance, and do apt-cache policy python-django I do see
                      | 1.5.x available, but 1.3.1 is what's installed
18:24:35 hazmat | cjohnston, on precise.. juju need cloud archive tools pocket for mongodb.. on 1.16 it installed mongodb from
                      | cloud archive.. 1.17 it added cloud-archive but only installed mongodb explicitly from it.
18:24:58 hazmat | and cloud-archive... happens to hold openstack.. of which horizon/dashboard uses djanog
18:25:37 hazmat | ie. 1.17 tries to be explicit about just mongo from cloud archive.. 1.16 picked up django from there.