No shared changes when editing several files at the same time

[badouralix]

When editing files of a common tex project in parallel ( at least in the case of several vim instances ), changes on a given file do not show up when recompiling the output of another given file.

---

Steps to reproduce:

1. Given the given two files main.tex and appendix.tex:

\documentclass{article}
\begin{document}
Hello,
\input{appendix}
\end{document}

% !TEX root = main.tex
world!

2. Open each file in a separate vim instance by running vim main.tex and vim appendix.tex in two different shells.

3. Run :LLPStartPreview in each vim instance.

4. Edit one file without saving it, then the other. The other pdf output is updated without the changes of the one file. (Saving the one file and focusing on the other file will update the output as expected.)

[teeuwen]

I can also reproduce this issue. This also occurs when you have 2+ buffers opened in the same VIM instance.

[bradwood]

Yup, this is a dealbreaker for my workflow :(