Workaround 1 - missing file extensions.

Author: Paebbels

.github/workflows/SphinxDocumentation.yml

@@ -180,6 +180,46 @@ jobs:
           sphinx-build -v -n -b latex -d _build/doctrees -j $(nproc) -w _build/latex.log . _build/latex
 #           --builder html --doctree-dir _build/doctrees --verbose --fresh-env --write-all --nitpicky --warning-file _build/html.log . _build/html
 
+      - name: Workaround I - https://github.com/sphinx-doc/sphinx/issues/13190
+        if: inputs.latex_artifact != ''
+        run: |
+          printf "Changing directory to 'doc/_build/latex' ...\n"
+          cd doc/_build/latex
+
+          printf "Changing file extension according to MIME type ...\n"
+          while IFS=$'\n' read -r file; do
+            printf "  Checking '%s' ... " "${file}"
+            mime="$(file --mime-type -b "${file}")"
+            printf "[%s]\n" "${mime}"
+            case "${mime}" in
+              image/png)
+                ext="png"
+                if [[ "${file##*.}" != "${ext}" ]]; then
+                  printf "    Rename file to '%s' " "${file}.${ext}"
+                  mv "${file}" "${file}.${ext}"
+                  if [[ $? -eq 0 ]]; then
+                    printf "[OK]\n"
+                  else
+                    printf "[FAILED]\n"
+                  fi
+
+                  printf "    Patching LaTeX file for '%s' " "${file}"
+                  printf "      %s\n" "sed -i \"s:\{\{${file%.*}\}\.${file##*.}\}:{{${file}}.${ext}}:g\" *.tex"
+                  sed -i "s:\{\{${file%.*}\}\.${file##*.}\}:{{${file}}.${ext}}:g" *.tex
+                  if [[ $? -eq 0 ]]; then
+                    printf "[OK]\n"
+                  else
+                    printf "[FAILED]\n"
+                  fi
+                else
+                  printf "unchanged\n"
+                fi
+                ;;
+              *)
+                ;;
+            esac
+          done <<<$(find . -type f -not -iname "*.cls" -not -iname "*.sty" -not -iname "*.xdy" -not -iname "*.svg" -not -iname "*.png" -not -iname "*.jpg" | sed 's:./::')
+
       - name: Workaround II - https://github.com/sphinx-doc/sphinx/issues/13189
         if: inputs.latex_artifact != ''
         run: |