Property observer unexpectedly firing?

PropertyObserver.swift

// Property observer unexpectedly firing?

protocol MyProtocol {
    var value: String { get set }
}

class MyClass: MyProtocol {
    var value: String = "Value"
}

class MyContext {
    var object: MyProtocol {
        didSet { print(object.value) }
    }

    init(object: MyProtocol) {
        self.object = object
    }
}

let reference = MyClass()
let context = MyContext(object: reference)
reference.value = "This should't fire (and doesn't)" // ✅
context.object.value = "This should't fire (but does?)" // ⚠️