[out.ptr.t] Fix bullet placement for item that starts with codeblock.

[Eelis]

Using the trick from

draft/source/memory.tex

Lines 5221 to 5224 in decb06c

	\item
	% pretend to \item that there is real text here, but undo the vertical spacing
	\mbox{}\vspace{-\baselineskip}\vspace{-\parskip}
	\begin{codeblock}