org-beamer-export-to-pdf generates \\\relax everywhere which makes latexmk complain

[Guillaume MULLER]

Hi,

This morning, I upgraded from Emacs 27 to Emacs 28 and to latest DoomEmacs.

Now, when I compile an org-Beamer presentation I had previously written & which 
compiled perfectly, latexmk outputs an error:

! Misplaced \noalign.

l.519 \end{frame}

\hline ->\noalign {\ifnum 0=`}\fi \hrule \@height \arrayrulewidth \futurelet...

When I go the l.519 in the .tex file, I can see that now 
org-beamer-export-to-pdf generates \\\relax everywhere instead of \\.

At least in tables, this seems to be erroneous as both latexmk & pdflatex complain and 
removing the \relax in the generated ".tex" file suffice to render them compilable 
again.

Is that a bug or is there something I missed?


Cheers,

Guillaume MULLER

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