…d (bikalbasnet)This PR was squashed before being merged into the 6.2 branch.Discussion----------[Security] Don't allow empty username or empty password| Q             | A| ------------- | ---| Branch?       | 6.2| Bug fix?      | no| New feature?  | yes| Deprecations? | yes| Tickets       |#46100| License       | MIT| Doc PR        | -<!--Replace this notice by a short README for your feature/bugfix.This will help reviewers and should be a good start for the documentation.Additionally (seehttps://symfony.com/releases): - Always add tests and ensure they pass. - Bug fixes must be submitted against the lowest maintained branch where they apply   (lowest branches are regularly merged to upper ones so they get the fixes too.) - Features and deprecations must be submitted against the latest branch. - Changelog entry should followhttps://symfony.com/doc/current/contributing/code/conventions.html#writing-a-changelog-entry - Never break backward compatibility (seehttps://symfony.com/bc).-->Reopened from#46109 into `6.1` branch as this is not a bug rather a security featureCommits-------db5afbd [Security] Don't allow empty username or empty password