New realm without comment generates parsing error in domains.cfg

[Jpppb]

Minor problem or bug: A few days ago I created a new OpenID realm with only the options listed below, no comments, and got an undefined value error for the comment section in domains.cfg

• Issuer URL: url-of-pocketID.domain.com
• Realm: pocketID
• Client ID: my-client-ID
• Client Key: my-client-key
• Username Claim: username

Noticed it when I was going through the system logs for something else and saw a line about pveproxy throwing an error for pocketID domains.cfg.

The OIDC client was added to pve on Aug 09 22:40 and there was a login on Aug 09 22:43 and Aug 10 21:33

journalctl -xe | grep domains.cfg
Aug 09 22:40:29 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:40:40 pve1 pvedaemon: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:41:47 pve1 pvedaemon: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:42:02 pve1 pvedaemon: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:42:56 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:43:18 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 09 22:43:18 pve1 pvedaemon: <root@pam> successful openid auth for user '<user>@pocketID'
...   ...   ...
Aug 09 23:11, 23:14, 23:25  same error repeating
Aug 10 21:33, 21:48, 22:18, 22:33 same error repeating
...   ...    ...
Aug 10 22:48 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 10 22:51 pve1 pvedaemon: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 10 22:57 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 12:35 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 12:35 pve1 pvedaemon: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 12:35 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 13:05 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 14:19 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 14:49 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 16:04 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 16:19 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value
Aug 13 16:46 pve1 pveproxy: file /etc/pve/domains.cfg line 15 (section 'pocketID') - unable to parse value of 'comment': got undefined value

The domains.cfg was created by PVE, I haven't edited it either, has a statement 'comment ' (trailing space), to my knowledge I did not even click the input bar on the creation form. The authentik realm was added ~2 years ago and has no empty comment section.

/etc/pve/domains.cfg
pam: pam
        comment Linux PAM standard authentication

pve: pve
        comment Proxmox VE authentication server

openid: authentik
        client-id <>
        issuer-url <>
        client-key <>
        default 0
        username-claim username

openid: pocketID
        comment
        client-id <>
        issuer-url <>
        client-key <>
        default 0
        query-userinfo 1
        username-claim username

I haven't seen the log again after adding an actual comment about 40 minutes ago (Aug 13 17:00) and haven't tried removing the 'comment' block from the config.

It is really minor and easy to solve but wanted to document it in case it happens more often,

Versions:
kernel: 6.8.12-10-pve
pve manager: 8.4.5