When multiple modes are enabled fullscreen button does not work as expected

[rajmondburgaj]

Below is my code:

  <VJsoneditor
    v-model="val"
    :height="'400px'"
    :plus="plus"
    :options="options"
  />

   options: {
      mode: 'code',
      modes: ['text', 'code', 'view'],
      enableSort: false,
      enableTransform: false,
      navigationBar: true,
      statusBar: true,
      history: false,
      search: false
    }

  computed: {
    plus () {
      return this.options.mode === 'code'
    }
  }

In this case the fullscreen button appears correctly because the first selected mode is code, but in case I set another value, for example text, and then switch to code from the dropdown, the button does not appear anymore.

Is this a bug or I am doing something wrong ?