Form repeater send wrong data with last element in Laravel

javascript php laravel forms

PHP Snippet 1:

<div class="col-md-4 col-sm-12 form-group">
<label for="Image">Image </label>
 <input type="file" class="form-control" 
 name="image">
</div>

PHP Snippet 2:

$data=$request->group_a

PHP Snippet 3:

<div data-repeater-list="group_a">