Fix null exceptions when requesting specific content trough the backoffice APIs#17846

nikolajlauridsen merged 1 commit intov13/devumbraco/Umbraco-CMS:v13/devfrom

v13/bugfix/null-user-in-authHandlingumbraco/Umbraco-CMS:v13/bugfix/null-user-in-authHandlingCopy head branch name to clipboard