CppCoreCheck with union

#pragma pack(push, 1)
class Handle
{
    union
    {
        struct
        {
            unsigned short index;           //the index in global handle list
            unsigned short handleNumber;    //the identifier number
        } handleDetail;
        unsigned int handle;
    };

public:

    /// warning C26495: Variable 'Handle::<unnamed-tag>::handleDetail' is uninitialized. Always initialize a member variable.
    Handle()
        : handle(0)
        //, handleDetail() /// Uncommenting line fixes C26495 but doesn't make sense
    {}
};
#pragma pack(pop)

int main()
{
    Handle h;
    return 0;
}