Juan Manuel Macías <maciaschain@posteo.net> writes:

>> It is easy to change \\\empty constant to \\[0pt] if necessary. I have
>> no objection either way. Though I do not feel like we are in rush. I'd
>> like to hear from ox-latex maintainer.
>
> Today I have tried with the latest version of tabularray (2022C, the one
> I tried yesterday was 2022A, included in TeX Live 2022), and the bad
> results persist. Also, it now returns a compile error when an \empty
> precedes a \hline. I suspect this package does a pretty drastic
> redefinition of \\. The [0pt] option still works fine here, though.

Then [0pt] should it be. At least for now, before we have a cleaner
solution.

See the attached patch.