title: Can I use "this" in mapMutations spread inside Vue instance methods?
body: <p>I want to set Vuex mutations as follows:</p>
  
  <pre><code>export default {
      props: {
          store: String
      },
      methods: {
          ...mapMutations({
              changeModel: `${this.store}/changeModel`
          })
      }
  }
  </code></pre>
  
  <p>But I catch the error:</p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot read property 'store' of undefined</p>
  </blockquote>
  
  <p>How do I correctly use <strong>props</strong> inside the module mutation name?</p>
  
  <p>I want to map <code>this.$store.commit('form1/changeModel')</code>, where <code>form1</code> is set from <strong>props</strong>.</p>