The old book site had a custom reST builder that would ignore extra leading intendation when the element only contained a list or a table. But in vanilla reST, that markup results in <blockquote><ul>... etc. Rather than port over the hacked-up builder, I just fixed the markup.
Oops. Apparently I ported over the 1.0 version, covering 0.96, not the 2.0 version, covering 1.0. Whoops. It's all good now. Nothing to see here. Move along.