{{yield}} behaves incorrectly inside of {{#each}} loops

[TehShrike]

In this example, the value of person is inherited correctly from the enclosing component:

<div>
  <SomeYieldingComponent>
    Hello {{person}}
  </SomeYieldingComponent>
</div>

In this example, it is not:

<div>
  {{#each people as person}}
     <SomeYieldingComponent>
      Hello {{person}}
    </SomeYieldingComponent>
  {{/each}
</div>

As far as I know {{yield}} is not usable in the online repl, so here is a full reproduction: https://github.com/TehShrike/svelte-yield-issue-repro

[Rich-Harris]

Fixed in 1.6.3, thanks