Using in ordered list leads to wrong rendering

[koppor]

When I put following markdown

---
layout: null
---
# Test

{% figure caption:"First Figure" %}
Content of first figure
{% endfigure %}

1. First step
2. Second step with figure

   {% figure caption:"Second Figure" %}
   Content of second figure
   {% endfigure %}

3. Third step

I would expect the second figure being nested in the second item - and that the third item is rendered as third item.

The result, however, is different:

<h1 id="test">Test</h1>

<figure>
Content of first figure
  <figcaption>First Figure</figcaption>
</figure>

<ol>
  <li>First step</li>
  <li>
    <p>Second step with figure</p>

    <figure>
Content of second figure

</figure>
  </li>
</ol>
<figcaption>Second Figure</figcaption>
<p>&lt;/figure&gt;</p>

<ol>
  <li>Third step</li>
</ol>

CC @grauschnabel