Ihor Radchenko writes: >> Assuming that there is currently no alternative to the non-selective >> solution, and that, as you say, the presence of brackets may be more >> common than I initially expected, if I had to choose between \empty and >> [0pt], I would say that [0pt] is the safest, as it is an expected >> argument to \\ and equals the default space. I can't think of any >> unexpected results from this, but of course, it also depends on there >> being no package redefining \\ with another argument structure on its >> own. I think it would be a bad idea for a package developer, but LaTeX >> (and the LaTeX packages) is horribly unpredictable. > > 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.
