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Description
Consider the following HTML:
<a href="test.png"><img src="test.png"></a>The img[src] attribute is rewritten as expected, but the a[href] is not, so you get this:
<a href="test.png"><img src="./_file/test.png"></a>We do rewrite a[href] attribute when there’s also a[download]:
We don’t blanketly rewrite a[href] because it’s often used to link to another page, and pages don’t live in _file. But we should be able to tell whether a link is a link to a page or not (because we know how to resolve pages) — and for that matter, we want to normalize and rewrite links to pages anyway (to remove .md and to add .html for non-clean URLs).