Comment 4 for bug 1420852

The above merge only fixes removal of single-unit mongodb service/application; but in case the replicaset has been deployed replica-set-relation-broken will still fail.

I've created fresh MP which addresses removal od multi-unit mongodb applicataion:

https://code.launchpad.net/~mariosplivalo/mongodb-charm/+git/mongodb-charm/+merge/330777