Add test to reproduce #13616

Author: cderv

tests/docs/smoke-all/2025/10/27/13616/13616.qmd

@@ -0,0 +1,15 @@
+---
+title: "Raw tex in content-visible div (#13616)"
+_quarto:
+  tests:
+    pdf:
+      noErrors: true
+---
+
+::: {.content-visible when-format="pdf"}
+
+```{=tex}
+\textbf{Hello World}
+```
+
+:::

tests/docs/smoke-all/2025/10/27/13616/_quarto.yml

@@ -0,0 +1,9 @@
+project:
+  type: manuscript
+
+manuscript:
+  article: 13616.qmd
+
+format:
+  pdf:
+    pdf-engine: xelatex