12.3.3 Can you answer these questions?

12.3.3.1 XeLaTeX and GhostScript based concatenation drops CID mapping with RevTeX (4-2)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=758136

The following test file: 
\documentclass{revtex4-2} 
\begin{document} 
efficient 
\end{document} 
when compiled with xelatex and combined with itself (or any other PDF file) using ghostscript as in 
gs -... 
[xetex] [unicode] [revtex]
 

asked by norbert https://tex.stackexchange.com/landing/r/digest?cta=user&id=10829 Score of 1

12.3.3.2 Conflict between KOMA-Script (scrbook) and babel [czech] after MiKTeX update: "\@startsection" hook error

https://tex.stackexchange.com/landing/r/digest?cta=question&id=758206

After updating MiKTeX (verified in MiKTeX Console, 2026-01-12), I encountered the following issue: 
Minimal Working Example (MNWE): 
\documentclass{scrbook} 
\usepackage[czech]{babel} 
\begin{document} 
... 
[koma-script] [babel]
 

asked by JardaFait https://tex.stackexchange.com/landing/r/digest?cta=user&id=17229 Score of 1

12.3.3.3 How to use datatooltk with DTLforeach after reading dbtex file using DTLread?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=758002

The following code works if I use \DTLread to read csv under name data, then save it as dbtex-3 using \DTLwrite, and finally read the .dbtex file under the name datafromdbtex. Then I can use it for ... 
[macros] [datatool] [csv]
 

asked by Krantz https://tex.stackexchange.com/landing/r/digest?cta=user&id=193743 Score of 1