.net core DescriptionAttribute未复制到引用的程序集（.NET Core）

我使用DescriptionAttribute作为友好名称。如果枚举在DLL中被引用，但在与另一个程序集共享DLL时未复制，则可以正常工作。为什么?

来源

public enum UserStatuses
    {
        /// <summary>
        /// No status
        /// </summary>
        [Description("None")]
        NONE = 0,

        /// <summary>
        /// User is active
        /// </summary>
        [Description("Active")]
        ACTIVE = 1,

        /// <summary>
        /// User is inactive
        /// </summary>
        [Description("InActive")]
        INACTIVE = 2,

        /// <summary>
        /// User is suspended
        /// </summary>
        [Description("Suspended")]
        SUSPENDED = 3,

        /// <summary>
        /// User's password has expired
        /// </summary>
        [Description("PasswordExpire")]
        PASSWORDEXPIRE = 4,

        /// <summary>
        /// User has 5 wrong login attempts
        /// </summary>
        [Description("FiveWrongAttempts")]
        FIVE_WRONG_ATTEMPTS = 5
    }

public enum UserStatuses
    {
        NONE = 0,
        ACTIVE = 1,
        INACTIVE = 2,
        SUSPENDED = 3,
        PASSWORDEXPIRE = 4,
        FIVE_WRONG_ATTEMPTS = 5
    }