bugfix: ilObjOrgUnitTree::$temporary_table_name needs initialization

when requesting "Profile and Privacy" from metabar menu, the following error is thrown:

Error thrown with message "Typed static property ilObjOrgUnitTree::$temporary_table_name must not be accessed before initialization"
Stacktrace:
ILIAS-eLearning#12 Error in /srv/www/xyz/Modules/OrgUnit/classes/class.ilObjOrgUnitTree.php:375
ILIAS-eLearning#11 ilObjOrgUnitTree:buildTempTableWithUsrAssignements in /srv/www/xyz/Modules/OrgUnit/classes/PathStorage/class.ilOrgUnitPathStorage.php:77
ILIAS-eLearning#10 ilOrgUnitPathStorage:getTextRepresentationOfUsersOrgUnits in /srv/www/xyz/Services/User/classes/class.ilObjUser.php:2586
ILIAS-eLearning#9 ilObjUser:lookupOrgUnitsRepresentation in /srv/www/xyz/Services/User/classes/class.ilObjUser.php:2591
ILIAS-eLearning#8 ilObjUser:getOrgUnitsRepresentation in /srv/www/xyz/Services/User/classes/class.ilUserProfile.php:785
ILIAS-eLearning#7 ilUserProfile:addStandardFieldsToForm in /srv/www/xyz/Services/User/Profile/classes/class.ilPersonalProfileGUI.php:632
ILIAS-eLearning#6 ilPersonalProfileGUI:initPersonalDataForm in /srv/www/xyz/Services/User/Profile/classes/class.ilPersonalProfileGUI.php:582
ILIAS-eLearning#5 ilPersonalProfileGUI:showPersonalData in /srv/www/xyz/Services/User/Profile/classes/class.ilPersonalProfileGUI.php:122
ILIAS-eLearning#4 ilPersonalProfileGUI:executeCommand in /srv/www/xyz/Services/UICore/classes/class.ilCtrl.php:178
#3 ilCtrl:forwardCommand in /srv/www/xyz/Services/Dashboard/classes/class.ilDashboardGUI.php:107
#2 ilDashboardGUI:executeCommand in /srv/www/xyz/Services/UICore/classes/class.ilCtrl.php:178
#1 ilCtrl:forwardCommand in /srv/www/xyz/Services/UICore/classes/class.ilCtrl.php:153
#0 ilCtrl:callBaseClass in /srv/www/xyz/ilias.php:24

Modules/OrgUnit/classes/class.ilObjOrgUnitTree.php

@@ -10,7 +10,7 @@
 class ilObjOrgUnitTree
 {
     protected static ?string $temporary_table_name_getOrgUnitOfUser = null;
-    protected static string $temporary_table_name;
+    protected static ?string $temporary_table_name = null;
     protected static ?ilObjOrgUnitTree $instance = null;
     /** @var int[][] "employee" | "superior" => orgu_ref_id => role_id */
     private array $roles;