Multiple checkboxes return wrong values

[Squareseidh]

Hello

When I construct my form, I declare this :

$formService->add(new Choice('type', ['required' => false,
                                                  'choices'  => [0 => 'test1', 1 => 'test2'],
                                                  'expanded' => true,
                                                  'multiple' => true]));

Which created this in html

<input id="service_type" name="service[type][]" class="custom-control-input" value="1" type="checkbox">
<span>0</span>
<input id="service_type" name="service[type][]" class="custom-control-input" value="1" type="checkbox">
<span>1</span>

But "test1" et "test2" in choices arrays are never used

For me service[type][] must be service[type][test1] and service[type][test2] and before i think it was like that because before this system worked