directory nested angle bracket component breaks the template compiler

[stephencattaneo]

Code:

{{#docs-demo as |demo|}}
  {{#demo.example name='important'}}
    <Button::Important>Foo</Button::Important>
  {{/demo.example}}

  {{demo.snippet 'important'}}
{{/docs-demo}}

Error:

Template Compiler Error (broccoli-persistent-filter:TemplateCompiler) in dummy/templates/docs/components/buttons.hbs

Closing tag `Button::Important` (on line 6) without an open tag.

---

This bug does not occur if the component is self closing:

{{#docs-demo as |demo|}}
  {{#demo.example name='important'}}
    <Button::Important />
  {{/demo.example}}

  {{demo.snippet 'important'}}
{{/docs-demo}}

[kpatelsecondst]

An interesting temporary workaround to this is adding any arbitrary attribute or even a space to the opening tag for any docs-demo item.

Example (breaks rendering)

<Button::Important>
   foo
</Button::Important>

Example (renders fine by even just adding a space in the opening tag)

<Button::Important >
   foo
</Button::Important>

Example (add any arbitrary attribute, also renders fine):

<Button::Important class="bar">
   foo
</Button::Important>

I assume something is off in the regex.