Add $options['number_path'] as AND condition to display numbers in headings

Closes #3511348

toc_api.module

@@ -73,7 +73,7 @@ function template_preprocess_toc_header(&$variables) {
   $options = $toc->getOptions();
   $variables['options'] = $options;
   $variables['header_options'] = $options['headers'][$item['tag']];
-  $variables['header_options']['display_number'] = in_array($variables['header_options']['number_type'], ['decimal', 'lower-alpha', 'upper-alpha', 'lower-roman', 'upper-roman']);
+  $variables['header_options']['display_number'] = $options['number_path'] && in_array($variables['header_options']['number_type'], ['decimal', 'lower-alpha', 'upper-alpha', 'lower-roman', 'upper-roman']);
 
   $variables['attributes']['id'] = $variables['id'];
   $variables['attributes'] = new Attribute($variables['attributes']);