[Bug] [5.4.0-alpha]: /plugins/UsersManager/Controller.php(223): Warning - Undefined array key

[atom-box]

What happened?

In Matomo Cloud, running version Matomo 5.4.0-alpha.20250304013241
a Green Panel gives the following warning in the interface:

WARNING: /plugins/UsersManager/Controller.php(223): Warning - Undefined array key "email" - Matomo 5.4.0-alpha.20250304013241 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: UsersManager, Action: userSettings, In CLI mode: false)

What should happen?

No warning would be preferred.

How can this be reproduced?

1. In Matomo Cloud go here:
   Admin(cog icon) >> Personal >> Settings
2. Notice the warning
3. No other view in Admin has the warning. Even System >> Users lacks the bug (seems to me like a bug in "UsersManager/Controller.php" would show as a bug in the Users report, right?)

Matomo version

5.4.0-alpha.20250304013241

PHP version

No response

Server operating system

In Matomo's private version of this ticket I will add more information about which users experience this.

What browsers are you seeing the problem on?

No response

Computer operating system

No response

Relevant log output

Validations

• Read our Contributing Guidelines.
• Follow our Security Policy.
• Check that there isn't already an issue that reports the same bug to avoid creating duplicates.
• The provided steps to reproduce is a minimal reproducible of the Bug.

[sgiehl]

@atom-box Do you know if the customer is using LoginLdap or LoginSaml? I wonder why the user might not have an email set 🤔