Comment 4 for bug 1818306

This also happens when calling `snap disable snap-name` and then doing `snap enable snap-name`, i.e. this flow is broken:

```
$ snap install test_1.0.0_amd64.snap --dangerous
test 1.0.0 installed
$ snap services test
Service Startup Current Notes
test.test1 enabled active -
$ snap stop --disable test.test1
Stopped.
$ snap services test
Service Startup Current Notes
test.test1 disabled inactive -
$ snap disable test
test disabled
$ snap enable test
test enabled
$ snap services test
Service Startup Current Notes
test.test1 enabled active -
```