Prefer `current_document.docname` (#13669)

doc/development/tutorials/examples/recipe.py

@@ -165,7 +165,7 @@ class RecipeDomain(Domain):
             name,
             signature,
             'Recipe',
-            self.env.docname,
+            self.env.current_document.docname,
             anchor,
             0,
         ))

doc/development/tutorials/examples/todo.py

@@ -44,7 +44,7 @@ class TodoDirective(SphinxDirective):
             self.env.todo_all_todos = []
 
         self.env.todo_all_todos.append({
-            'docname': self.env.docname,
+            'docname': self.env.current_document.docname,
             'lineno': self.lineno,
             'todo': todo_node.deepcopy(),
             'target': targetnode,