Prop default gets overwritten in all mount-instances as soon as prop is passed once

I have a my-component.vue which sets a prop default to true:

const props = defineProps({
    modelValue: String,
    editable: {
        type: Boolean,
        default: true
    }
})

I’d assume now that whenever the component is imported and mounted, its editable prop is set to true if no no other value is passed as prop but as soon as I pass:

<my-component :editable="false"/>

in any of the parent components, the editable prop inside my-component is permanently set to false in all instances of mounting it.

Is that the desired behaviour of default props or am I doing something wrong?

>Solution :

You probably have a bug somewhere, the default prop shouldn’t be overwritten by setting a prop value in a sibling.

As you can see in this example the default value is applied even though one of the siblings has :editable="false"