Why doesn't this.$refs.form.reset() work the second time around?

Question

Vue.js

<v-form lazy-validation v-model="valid" ref="form">
...
</ v-form>

methods: {
..
            close() {
                this.$refs.form.reset()
                this.$emit('close')
            },
..
}

The first time clears, when I open the form again it does not clear.