Nest named slots inside slots

Help Requests
1

Hey

I tried to nest a named slot in an existing slot and it does not work.

<!-- my-super-element -->
<template>
  <custom-element-1>
    <slot name="my-fancy-slot"></slot>
  </custom-element-1>
  <custom-element-1>
    <slot name="another-slot"></slot>
  </custom-element-1>
</template>

<!-- inside view model -->
<my-super-element>
  <div slot="my-fancy-slot">Hey</div>
  <div slot="another-slot">Hi</div>
</my-super-element>

If I nest unnamed slots it works like a charm.

Any ideas? Thanks and cheers.