11.21.3 Can you answer these questions?

11.21.3.1 Package pdfpages clashes with tikz externalize

https://tex.stackexchange.com/landing/r/digest?cta=question&id=739399

I want to insert a pdf page using the pdfpages package and then in another page I have a figure created with tikz. 
If I just do it, everything is fine. 
If I use the externalize feature of tikz I run ... 
[tikz-pgf] [pdfpages] [tikz-external]
 

asked by brad https://tex.stackexchange.com/landing/r/digest?cta=user&id=63363 Score of 1

11.21.3.2 How can I pass the languages to my custom documentclass?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=739403

I am creating a documentclass for which I want to be able to define the languages used in a customization section. 
The current approach is loading the customized languages too late so that they are ... 
[babel] [documentclass-writing]
 

asked by lukascbossert https://tex.stackexchange.com/landing/r/digest?cta=user&id=98739 Score of 2

11.21.3.3 Why does TikZ's grouping and "current point is local" cause options to be lost and weirdness in positioning?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=739409

\documentclass[a4paper]{article} 
\usepackage[margin = 2cm, headsep = 10pt]{geometry} 
\usepackage{tikz} 
\usetikzlibrary{automata, positioning} 
\begin{document} 
\begin{tikzpicture}[node distance = ... 
[tikz-pgf] [tikz-arrows] [tikz-styles]
 

asked by palapapa https://tex.stackexchange.com/landing/r/digest?cta=user&id=291084 Score of 1