I'm experiencing this bug as well.
Seems to be happening while removing an application and the deploying the same application again. But not for every charm.
% juju --version 2.2-beta4-xenial-amd64
$ sudo apt list --installed | grep juju-mongodb juju-mongodb3.2/xenial-updates,now 3.2.12-0ubuntu1~16.04 amd64 [installed]
Juju provider: manual
I'm experiencing this bug as well.
Seems to be happening while removing an application and the deploying the same application again. But not for every charm.
% juju --version xenial- amd64
2.2-beta4-
$ sudo apt list --installed | grep juju-mongodb 2/xenial- updates, now 3.2.12- 0ubuntu1~ 16.04 amd64 [installed]
juju-mongodb3.
Juju provider: manual