Html for nested list not generated properly

[mubashiralisiddiqui]

vue2-editor version: ^2.10.2

in the editor it showing nested list correctly but the HTML generate for list is not correct current behavior : <ol> <li>OL Parent item</li> <li class="ql-indent-1">Child item</li> <li class="ql-indent-2">Child of child item</li> </ol>

expected ressult should be

<ol> <li>OL Parent item <ol> <li>Child item </li> <li>Child of child item</li> </ol>