From af30bbfd7f4635c159aa2568bd49b2f80452ccde Mon Sep 17 00:00:00 2001
From: Nick Wold <nicholaswold@users.noreply.github.com>
Date: Mon, 24 Jan 2022 09:48:51 -0800
Subject: [PATCH] Update nbformat/validator.py

Co-authored-by: Paul Ivanov <pi@berkeley.edu>
---
 nbformat/validator.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nbformat/validator.py b/nbformat/validator.py
index 2df2acaf..46ab6716 100644
--- a/nbformat/validator.py
+++ b/nbformat/validator.py
@@ -342,7 +342,7 @@ def iter_validate(nbdict=None, ref=None, version=None, version_minor=None,
                             error_for_intended_schema = error.schema_path[0] == schema_index
                             is_top_level_metadata_key = len(rel_path) == 2 and rel_path[0] == "metadata"
                             if error_for_intended_schema and is_top_level_metadata_key:
-                                nbdict["cells"][cell_idx][rel_path[0]].pop(rel_path[1], None)
+                                nbdict["cells"][cell_idx]["metadata"].pop(rel_path[1], None)
 
             # Validate one more time to ensure that us removing metadata
             # didn't cause another complex validation issue in the schema.