ios – Replace measurement of ScrollView merchandise on faucet gesture

I am attempting to replace the dimensions of a ScrollView merchandise view on faucet gesture however in the meanwhile nothing appears to occur aside from the debugger logging the next:
onChange(of: Elective<AnimalItem>) motion tried to replace a number of occasions per body.

The code is as follows:

struct AnimalItem: Identifiable, Equatable {
    non-public(set) var id: UUID = .init()
    var textual content: String
    var picture: String
    var expanded = false
}

struct AnimalItemView: View {
    @State var merchandise: AnimalItem
    
    var physique: some View {
        Picture(merchandise.expanded ? merchandise.picture : merchandise.textual content)
            .resizable()
            .scaledToFill()
            .body(width: merchandise.expanded ? 350 : 200, top: 250)
            .clipShape(RoundedRectangle(cornerRadius: 10))
    }
}

struct AnimalCarousalView: View {
    @State var objects: [AnimalItem] = [
        .init(text: "A", image: "alligator"),
        .init(text: "B", image: "bear"),
        .init(text: "C", image: "cat")
    ]
    @State var selectedItem: AnimalItem?
    var physique: some View {
        ScrollView(.horizontal) {
            LazyHStack(spacing: 10) {
                ForEach(objects, id: .id) { merchandise in
                    AnimalItemView(merchandise: merchandise)
                        .clipShape(RoundedRectangle(cornerRadius: 10))
                        .onTapGesture {
                            selectedItem = merchandise
                        }
                }
            }
        }
        .body(top: 250)
        .contentShape(Rectangle())
        .scrollIndicators(.hidden)
        .clipped()
        .onChange(of: selectedItem) { _ in
            withAnimation {
                selectedItem?.expanded.toggle()
            }
        }
    }
}

What I wish to obtain is for the Picture in AnimalItemView to develop in width when tapped and shrink when tapped once more. Additionally at any time, I might like for just one scroll merchandise view to remain expanded. At present, nothing occurs after I faucet on the view. Aside from this, I additionally appear to require the clipShape modifier utilized to the AnimalItemView as nicely. If I do not, the AnimalItemView solely appears to have a rounded clip for the underside edges & the highest edges seem flat. Lastly, it does not appear right to have the enlargement property expanded be inside AnimalItem, although I could be mistaken? Any assistance is appreciated.