snap whoami does not reflect correct login status

[Kristin Chuang]

===== steps =====

[1a] Complete console-conf process during system setup stage using email account <email address hidden>

[1b] Check login status:
$ snap whoami
email: - #blank email info returned, should return foo's info

$ cat ~/.snap/auth.json
  #~/.snap/auth.json exists, but no explicit foo related info listed in content

[2a] Do login with a new account <email address hidden>
$ snap login <email address hidden>
<enter password>
Login successful

[2b] Check login status:
$ snap whoami
email: <email address hidden> #email info updated from blank to previous user foo, but should actually update to user bar

$ cat ~/.snap/auth.json
{"id":1,"username":"foo","email":"<email address hidden>"...} #content updated to user foo's info, but should actually be updated to user bar's

[3a] Logout:
$ snap logout

[3b] Check login status:
$ cat ~/.snap/auth.json
cat: .snap/auth.json: No such file or directory

[4a] Try logging in again with <email address hidden>
$ sudo snap login <email address hidden>
<enter password>
Login successful

[4b] Check login status:
$ snap whoami
email: <email address hidden> #correctly reflects current user

$ cat ~/.snap/auth.json
{"id":2,"email":"<email address hidden>"...} #correctly updated with current user's info

===== expected result =====
`snap whoami` and ~/.snap/auth.json should correctly reflect the status of the current user

===== actual result =====
1. Note the difference between step 2a and 4a, 1b and 3b:
 * ~/.snap/auth.json exists in 1b, while it does not in 3b.
 * Step in 2a does not need sudo, while step in 4a does.
This indicates that, if I am not mistaken, foo is already logged in after console-conf completed, but not reflected correctly in `snap whoami` or ~/.snap/auth.json.

2. Note steps 2a & 2b:
User has been updated from foo to bar in these steps, but `snap whoami` and ~/.snap/auth.json is one step behind and just updates from blank user to previous user foo.

3. Note steps 3a and after:
The current user info is logged correctly only after a `snap logout` has been performed to reset the authentication details.

=> As a conclusion:
It seems like the initial user info is already incorrect, and will not update to the correct status unless a reset-like function `snap logout` is performed.

===== Core version =====
$ snap list
Name Version Rev Developer Notes
core 16-2.26.9 2381 canonical -

[Maciej Borzecki (maciek-borzecki)]

Thanks for reporting this. The fix for the empty email after console-conf just landed right here: https://github.com/snapcore/snapd/pull/4460

The second part, with email not getting update, should get resolved soon as well.

[Maciej Borzecki (maciek-borzecki)]

The second bit just landed right here: https://github.com/snapcore/snapd/pull/4463