LaTeX writer: Fix footnotes in table caption and cells.

This fixes a bug wherein footnotes appeared in the wrong
order, and with duplicate numbers, when in table captions
and cells.

We now use regular `\footnote` commands, even in the table
caption and the minipages containing cells. Apparently
longtable knows how to handle this.

Closes #5367.

1 files changed, 44 insertions, 0 deletions

diff --git a/test/command/5367.md b/test/command/5367.md
new file mode 100644
index 000000000..ae8744dd7
--- /dev/null
+++ b/test/command/5367.md
@@ -0,0 +1,44 @@
+```
+% pandoc -t latex
+hello[^1]
+
+: Sample table.[^2]
+
+-----------
+ Fruit[^3]
+-----------
+ Bans[^4]
+-----------
+
+dolly[^5]
+
+[^1]: doc footnote
+[^2]: caption footnote
+[^3]: header footnote
+[^4]: table cell footnote
+[^5]: doc footnote
+^D
+hello\footnote{doc footnote}
+
+\begin{longtable}[]{@{}c@{}}
+\caption[Sample table.]{Sample table.\footnote{caption footnote}}\tabularnewline
+\toprule
+\begin{minipage}[b]{0.16\columnwidth}\centering
+Fruit\footnote{header footnote}\strut
+\end{minipage}\tabularnewline
+\midrule
+\endfirsthead
+\toprule
+\begin{minipage}[b]{0.16\columnwidth}\centering
+Fruit{}\strut
+\end{minipage}\tabularnewline
+\midrule
+\endhead
+\begin{minipage}[t]{0.16\columnwidth}\centering
+Bans\footnote{table cell footnote}\strut
+\end{minipage}\tabularnewline
+\bottomrule
+\end{longtable}
+
+dolly\footnote{doc footnote}
+```