Comment 0 for bug 1922297

# Overview

Per LP: #1827951 and LP: #1748581, it would appear that if a snap is tracking a release channel (e.g. latest/stable/ubuntu-20.10), during a do-release-upgrade the snap channel should update to the new release. Testing of a Google cloud image, from 20.10 to 21.04 the google-cloud-sdk does not get updated.

# Expected result

After a do-release-upgrade, the snap channel for google-cloud-sdk should be updated from "latest/stable/ubuntu-20.10" to "latest/stable/ubuntu-21.04".

# Actual result

After install, the snap continues to track "latest/stable/ubuntu-20.10".

# Steps to reproduce

1. Boot 20.10 GCE image
2. snap info google-cloud-sdk --> "latest/stable/ubuntu-20.10"
3. do-release-upgrade -d
4. accept defaults and reboot
5. snap info google-cloud-sdk --> "latest/stable/ubuntu-21.04"

# Logs

main.log https://paste.ubuntu.com/p/kbSvM5JMzP/
screenlog.0 https://paste.ubuntu.com/p/h5kvtcX5Z6/
apt-term.log https://paste.ubuntu.com/p/gNJVzbtT4Z/