Retrieves all menu security user records from MENU_SECURITY_USER without filtering. Note: the DB analysis documents that BeforeRetrieve issues an AddParm("MenuUser", ...) call in this branch even though the SQL text contains no :MenuUser bind variable — a source-level anomaly.
Note: Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.