I have a SwiftData object Set that has a non Optional reps and Weight and when my editView gets initialized I Set the existing sets to a State object:

  @State var sets: [Set]

        .onAppear {
            //this will check if the exercise has sets and if it does we will put them into State but if its doesnt we will create 2
            // exercise = exercise
            if let newSets = exercise.sets {    //unwrapping the passed exercises sets
                if (!newSets.isEmpty) {     //we passed actual sets in so set them to our sets
                    sets = newSets
                }
                else {      //the exercise had no sets meaning an empty array was passed so we fill it with our mock Sets
                    sets = [Set(id: UUID(), weight: 0, reps: 0,isCompleted: false, exercise: exercise),Set(id: UUID(), weight: 0, reps: 0, isCompleted: false, exercise: exercise)]
                }
                sortSets()
                
            }
            //The optional exercise sets array was empty so load default sets into State
            else {
                sets = [Set(id: UUID(), weight: 0, reps: 0,isCompleted: false, exercise: exercise),Set(id: UUID(), weight: 0, reps: 0, isCompleted: false, exercise: exercise)]
                sortSets()
            }
        }

Then I iterate through this State of sets and bind the weight and reps to two TextFields:

                    ForEach($sets){ $set  in
                        //HStack for Editing the Details of a Set
                        HStack(spacing: 10) {
                            Group {
                                if(set.isCompleted) {
                                    Image(systemName: "checkmark.circle.fill")
                                        .foregroundStyle(.green) // Using the custom color
                                        .font(.system(size: 22)) // Adjust the size here
                                    
                                } else {
                                    Image(systemName: "circle")
                                        .font(.system(size: 22)) // Adjust the size here
                                }
                            }
                            .onTapGesture {
                                if(set.reps != 0 && set.weight != 0) {
                                    set.isCompleted.toggle()
                                }
                            }
                            //Enter Reps and Weight
                            HStack {
                                VStack(alignment: .leading){
                                    Text("Kg")
                                        .foregroundStyle(.gray)
                                        .font(.subheadline)
                                    //problem is here
                                    TextField("(set.weight)", value: $set.weight, formatter:Formatter.valueFormatter)
                                        .keyboardType(.decimalPad)
                                }
                                .frame(width: 45)
                                .padding(.leading)
                                //.background(.yellow)
                                
                                //Enter Reps
                                VStack(alignment: .leading) {
                                    Text("Reps")
                                        .foregroundStyle(.gray)
                                        .font(.subheadline)
                                    TextField("(set.reps)", value: $set.reps,formatter:Formatter.valueFormatter)
                                        .keyboardType(.decimalPad)
                                  
                                    
                                    
                                    
                                }
                                .frame(width: 45)
                                //.background(.blue)
                            }
                            
                            Spacer()
                            
                            //Button to dublicate the current set and add it to the list
                            Button {
                                print("Current sets count: (sets.count)")
                                if(sets.count <= 7) {
                                    let weight = set.weight
                                    let reps = set.reps
                                    let newSet = Set(id: UUID(),weight: weight, reps: reps, isCompleted: false, exercise: exercise)
                                    withAnimation {
                                        sets.append(newSet)
                                    }
                                }
                                
                                
                            }
                        label: {
                            Image(systemName: "plus.rectangle.on.rectangle")
                        }
                        .buttonStyle(.borderless)
                        }
                        
                        
                        
                    }

Now the problem is that If the Set already has a Weight and Reps I can’t set it to 0 to change it i.e it has 5 reps I want to change it to 6 I cannot clear the 5 to write 6 it wont allow it to be cleared, strangely enough when I add a new set in the New Set button:

Button {
                                print("Current sets count: (sets.count)")
                                if(sets.count <= 7) {
                                    let weight = set.weight
                                    let reps = set.reps
                                    let newSet = Set(id: UUID(),weight: weight, reps: reps, isCompleted: false, exercise: exercise)
                                    withAnimation {
                                        sets.append(newSet)
                                    }
                                }

It does not have that problem I can add and clear reps and weight as much as I want, why is that?