Child elements of a GO link are not cloned

My description was messed up. I meant to write that this is similar to #101605: <img> inside <go> appears to break it.. Thank you!

I have a fix that seems to work for me, but I'd love a code review of sorts. The diff is:

> diff gotwo.module.orig gotwo.module
200c200,204
<     $linkNode = $goNode->ownerDocument->createElement('a', $goNode->nodeValue);
---
>     // This is a fix for http://drupal.org/node/1088042
>     // Assumes that <go> tag only contains ONE CHILD
>     $firstChild = $goNode->firstChild;
>     $linkNode = $goNode->ownerDocument->createElement('a');
>     $linkNode->appendChild($firstChild);
417c421
< }
\ No newline at end of file
---
> }

Basically, when <go> contains an <img>, the goNode->nodeValue is an empty string (or at least, it acts empty). This is because the nodeValue is not a TEXT_NODE, but rather an ELEMENT_NODE. The proposed fix creates the element 'a' as the linkNode, and then appends the first child into it. Big assumption is that will contain ONE CHILD. The fix could be made more defensive. Please advise on checking in and what not.