Why recieveValue block is known as twice?

I’ve this code:

import SwiftUI
import Mix


closing class ViewModel: ObservableObject {
    @Printed var textual content = ""
    var cancellables = Set<AnyCancellable>()

    init() {
        $textual content
            .sink { completion in

            } receiveValue: { textual content in
                print("Textual content (textual content)")
            }.retailer(in: &cancellables)

    }
}

struct ContentView: View {

    @StateObject non-public var vm = ViewModel()
    var physique: some View {
        TextField("Title", textual content: $vm.textual content)
    }
}

#Preview {
    ContentView()
}

What I’ve observed, if I sort one letter, i obtain two values.
So at first it would simply say Textual content. And if I sort one letter, say letter A, output will seem like this:

Textual content A

Textual content A

In some circumstances I noticed it prints identical worth much more than two occasions.

I do know I can use removeDuplicates however why is that this really taking place?

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