🐛 catch AttributeError when navigation_node is str

Author: krmax44

fragdenstaat_de/fds_cms/templatetags/fds_cms_tags.py

@@ -82,23 +82,23 @@ def get_soft_root(page):
 @register.simple_tag(takes_context=True)
 def get_breadcrumb_ancestor(context, navigation_node):
     print(context)
-    if navigation_node == None:
+    if navigation_node is None:
         return
 
     try:
         request = context["request"]
     except KeyError:
         return
 
-    page = Page.objects.get(pk=navigation_node.id)
 
     try:
+        page = Page.objects.get(pk=navigation_node.id)
         ancestor = page.fdspageextension.breadcrumb_ancestor
         only_upwards = page.fdspageextension.ancestor_only_upwards
     except AttributeError:
         return
 
-    if ancestor == None:
+    if ancestor is None:
         return
 
     if only_upwards and request.current_page != page: