Slot + v-if="false" + @click = wrong bindings

[fnlctrl]

Came across this strange bug today.
html:

<foo>
  <div slot="a" v-if="false"></div> 
  <!-- <div slot="a" v-if="true">No warnings if v-if="true"</div> -->
</foo>

js:

var vm = new Vue({
  el: 'body',
  components: {
    foo: {
      template: `
        <slot name="a">
          <div @click="bar"></div>
        </slot>
      `,
      methods: {
        bar() { /* do something */ }
      }
    }
  }
})

gives:

[Vue warn]: v-on:click="bar" expects a function value, got undefined.

Fiddle:
https://jsfiddle.net/fnlCtrl/ce1Lc0xs/

(Happy new year by the way :D)

[fnlctrl]

I was actually using v-if="someComputedProperty",
and when someComputedProperty changes to false,
@click="bar" stopped working somehow.

[fnlctrl]

Well it seems that @click="bar" was trying to bind to parent bar.
see fiddle: https://jsfiddle.net/fnlCtrl/ce1Lc0xs/2/