snap-store-proxy: override latest/stable not working

[Kyle Nitzsche]

I can't seem to set an override for a snap in the global store to latest/stable channel:

root@snap-store-proxy-2:~# snap-proxy override modem-manager latest/stable=2253
Failed to set override:
Revision 2253 of snap 'modem-manager' is not currently in any channel.
root@snap-store-proxy-2:~# snap-proxy override core18 latest/stable=2253
Failed to set override:
No channel 'latest/stable' for core18

But there is a latest/stable channel for core18:

root@snap-store-proxy-2:~# snap info core18
name: core18
summary: Runtime environment based on Ubuntu 18.04
publisher: Canonical✓
store-url: https://snapcraft.io/core18
license: Other Open Source
description: |
  The base snap based on the Ubuntu 18.04 release.
type: base
snap-id: CSO04Jhav2yK0uz97cr0ipQRyqg0qQL6
channels:
  latest/stable: 20211028 2021-11-21 (2253) 58MB -
  latest/candidate: 20211123 2021-12-02 (2279) 58MB -
  latest/beta: 20211123 2021-11-24 (2279) 58MB -
  latest/edge: 20211123 2021-11-23 (2279) 58MB -

[Przemysław Suliga (suligap)]

Thanks for the report.

The override logic isn't correctly recognizing default track (latest) channels when the track is passed in explicitly.

A simple workaround is to omit "latest/" when specifying "latest" track channels.