Don't display tooltip if #popover is not defined

[albertcito]

This code in any case display an empty tooltip. I think it should not:

<Tooltip>
  <a>Sponsor me</a>

  <template v-if="false" #popper>
    Help me fund my Open Source work!
  </template>
</Tooltip>

OR

const message = ref<undefined>();
<Tooltip :message="message">
  <a>Sponsor me</a>
</Tooltip>