VueJS: using v-for on checkbox doesn't fire v-model correctly. How can this be fixed?

Question

Vue.js

When you click on one checkbox, all of them are selected at once. What could be the reason? How can this be fixed?
Sandbox code:
https://codesandbox.io/s/mozwrvqz78
Component used:
https://github.com/mariomka/vue-checkbox-radio

Answer 1

Assign checkboxes normal values: :value="name".
Or specify an index in v-model: v-for="(name, i) in names", v-model="checkboxValue[i]".