Expected behavior Get items list order/positions after reordering them in mdb-sortable list.

Actual behavior No doc, nothing in forum.

Resources (screenshots, code snippets etc.)

<mdb-list-group>
    <mdb-sortable :list="questionAnswer.propositions" v-model="value.classementPropositions">
        <mdb-list-group-item 
        v-for="(proposition, index) in questionAnswer.propositions"
        :key="proposition.id"
        :active="index == 0">
            <span>{{ index + 1 }}</span>
            {{ proposition }}
        </mdb-list-group-item>
    </mdb-sortable>
</mdb-list-group>