Deleted special operations are propagated to derived class, C++ (clang)

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#include <iostream>

class IBase
{
	public:
        IBase() = default;
		IBase(const IBase& other) = delete;
		IBase(IBase&& other) noexcept = delete;
		IBase& operator=(const IBase& other) = delete;
		IBase& operator=(IBase&& other) noexcept = delete;
		virtual ~IBase() = 0;

virtual int GetProperty() const = 0;
		virtual void SetProperty(const int& property) = 0;
};
inline IBase::~IBase() {}

class Derived : public IBase
{
    public:
        int GetProperty() const override { return m_property; };
        void SetProperty(const int& property) override { m_property = property; };
    private:
        int m_property{};
};

int main()
{
    // One instance
    Derived aa;

// Set "property" through a virtual method.
    aa.SetProperty(42);

// Second instance
    Derived bb = aa;
       
    // This propery was set through virtual method.
    std::cout << "aa m_property: " << iBase.GetProperty() << "\n";
    
    // This property was not set via copy assignment operator. See line 33 for more details.
    std::cout << "bb m_property: " << aBase.GetProperty() << "\n";
       
}

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Compilation time: 3.17 sec, absolute service time: 3,28 sec