🇪🇸Spain @gejo

I've ended up removing this function from a custom module.

<?php
/**
 * Implements hook_theme_registry_alter().
 *
 * This function prevents the Gin theme from processing breadcrumbs by removing
 * its preprocess callback from the theme registry. As a result, the theme will
 * no longer invoke gin_preprocess_breadcrumb().
 */
function MYMODULE_theme_registry_alter(&$theme_registry) {
  // Check if the 'breadcrumb' hook has any registered preprocess functions.
  if (isset($theme_registry['breadcrumb']['preprocess functions'])) {
    foreach ($theme_registry['breadcrumb']['preprocess functions'] as $key => $function) {
      // Identify the 'gin_preprocess_breadcrumb' function.
      if ($function === 'gin_preprocess_breadcrumb') {
        // Remove it so it won't be executed for breadcrumb rendering.
        unset($theme_registry['breadcrumb']['preprocess functions'][$key]);
      }
    }
  }
}
?>

Maybe something like this?

<?php
/**
 * Implements hook_theme_registry_alter().
 *
 * This function prevents the Gin theme from processing breadcrumbs by removing
 * its preprocess callback from the theme registry. As a result, the theme will
 * no longer invoke gin_preprocess_breadcrumb().
 */
function MYMODULE_theme_registry_alter(&$theme_registry) {
  // Check if the 'breadcrumb' hook has any registered preprocess functions.
  if (isset($theme_registry['breadcrumb']['preprocess functions'])) {
    foreach ($theme_registry['breadcrumb']['preprocess functions'] as $key => $function) {
      // Identify the 'gin_preprocess_breadcrumb' function.
      if ($function === 'gin_preprocess_breadcrumb') {
        // Remove it so it won't be executed for breadcrumb rendering.
        unset($theme_registry['breadcrumb']['preprocess functions'][$key]);
      }
    }
  }
}
?>

gejo → created an issue.