Repeating same data in child / detail row in Master detail form(Parent -Child Form) in Laravel Livewire

Question

I am developing application in Laravel livewire. When I add through button then automatically data get from previous child row but when I change in new row then automatically changing in previous child row. I referred code from this video https://www.youtube.com/watch?v=iuIEqOcQi6g Please help me