patch prod

src/main/java/fr/eni/enchere/controllers/ArticleController.java

@@ -59,6 +59,9 @@ public class ArticleController {
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
         if (!authentication.getName().equals("anonymousUser")) {
             Article article = articleService.findArticleById(id);
+            if (article == null) {
+                return "redirect:/enchere";
+            }
             UserProfil user = userService.utilisateurById(article.getUtilisateur());
             Categorie cate = categorieService.findCategorieById(article.getNumCategorie());
             Retrait retrait = retraitService.findByNumArticle(article.getId());