LaTeX renderer prototype for links ignores the text and the title for relative references

[Witiko]

Since version 2.15.0, Markdown has supported the relativeReferences option that enables the user to specify relative references in autolinks (e.g. see <#my-table>). The LaTeX renderer prototype for links special-cases relative references and typesets them using the \ref command, ignoring the text and the title of the references:

markdown/markdown.dtx

Lines 23143 to 23169 in a8e5838

	% \begin{markdown}
	% If the URL begins with a hash sign, then we assume that it is a relative
	% reference. Otherwise, we assume that it is an absolute URL.
	% \end{markdown}
	% \begin{macrocode}
	\tl_set:Nx
	\l_tmpa_tl
	{ \str_range:nnn { ##3 } { 1 } { 1 } }
	\str_if_eq:NNTF
	\l_tmpa_tl
	\c_hash_str
	{
	\exp_args:No
	\markdownLaTeXRendererRelativeLink
	{ \str_range:nnn { ##3 } { 2 } { -1 } }
	}{
	\markdownLaTeXRendererAbsoluteLink { ##1 } { ##2 } { ##3 } { ##4 }
	}
	}
	\next
	}
	\ExplSyntaxOff
	\def\markdownLaTeXRendererAbsoluteLink#1#2#3#4{%
	#1\footnote{\ifx\empty#4\empty\else#4: \fi\texttt<\url{#3}\texttt>}}
	\def\markdownLaTeXRendererRelativeLink#1{%
	\ref{#1}}
	% \end{macrocode}

However, this also affects relative references in direct links (e.g. see [my table](#my-table "some title")) and indirect links (e.g. see [my table][] ... [my table]: #my-table "some title"), where a user may expect that the text and the title would not be ignored.

Hats off to @drehak for discovering the issue.