Nested templates don't support multi-level block overrides

[laurie71]

I'd like to have a 'base' layout, section specific layouts that extend the base layout, then pages extending the section specific layouts. However I can't get blocks in the page templates to show up if they're defined in the section template. Here's a simple example:

[base.dust]

{+head/} {+body/}

[section1.dust] {>base/} {<head}

{/head}

[page1.dust] {>section1/} {<title}Page 1{/title} {<head}

{/head}
{<body}
    PAGE BODY
{/body}

The desired result would be a page with both the 'script' tag and the stylesheet 'link' tag in the head. How do I do that, without having to define new blocks in each template? (which would be problematic if the number of nested templates varied from page to page)

Here's a fiddle where I've been playing with this, for reference: http://jsfiddle.net/laurie/dxDyN/1/