Comment 3 for bug 1988587

I've also tried with the command suggested above (for another charm) and that doesn't work:

```
mthaddon@finistere:~$ juju refresh nginx-ingress-integrator --switch nginx-ingress-integrator --channel=latest/edge
charm "nginx-ingress-integrator": already up-to-date
mthaddon@finistere:~$ juju status
Model Controller Cloud/Region Version SLA Timestamp
ingress-test microk8s-localhost microk8s/localhost 2.9.35 unsupported 15:33:13+01:00

App Version Status Scale Charm Channel Rev Address Exposed Message
hello-kubecon waiting 1 hello-kubecon stable 14 10.152.183.242 no installing agent
nginx-ingress-integrator active 1 nginx-ingress-integrator stable 40 10.152.183.125 no Ingress with service IP(s): 10.152.183.42

Unit Workload Agent Address Ports Message
hello-kubecon/0* waiting idle 10.1.129.141 waiting for Pebble in workload container
nginx-ingress-integrator/0* active idle 10.1.129.139 Ingress with service IP(s): 10.152.183.42

mthaddon@finistere:~$ juju info nginx-ingress-integrator
name: nginx-ingress-integrator
publisher: Tom Haddon
summary: |
  An operator to configure a kubernetes ingress.
description: |
  An operator to configure a kubernetes ingress.
store-url: https://charmhub.io/nginx-ingress-integrator
charm-id: aQVXlrbsLWBTiAiQF0lilvUFolDOpKaE
supports: focal
subordinate: false
relations:
  provides:
    ingress: ingress
  requires: {}
channels: |
  latest/stable: 40 2022-11-10 (40) 8MB
  latest/candidate: ↑
  latest/beta: ↑
  latest/edge: 42 2022-11-14 (42) 12MB
```
I would expect it would switch me to the edge channel, which has revision 42.