This is working as expected, v-ref creates an array with v-for loops. I see how this could be useful for form elements or any other element of different nature that needs the same function to be applied. However, it's something you can already achieve manually by specifying different references to different elements.

but my example abrove do not creates an array, because is in render function. it working as expected only in with v-for loop. so how can i achieve that in render function?

add a refInFor attribute , https://jsfiddle.net/defcc/gmve9d3p/43/

  render(createElement) {
    return createElement('ul', [
      createElement('li', { ref: 'a', refInFor: true }, 'a'),
      createElement('li', { ref: 'a', refInFor: true  }, 'a'),
      createElement('li', { ref: 'a', refInFor: true  }, 'a'),
      createElement('li', { ref: 'a', refInFor: true  }, 'a')
    ]);
  }

Thanks @defcc , it work well

@defcc Is there a way to do that using the template syntax?