From 282c36191cea4b68d755cfa11f59c3cd9f33f785 Mon Sep 17 00:00:00 2001
From: joelostblom <joel.ostblom@gmail.com>
Date: Thu, 15 Aug 2019 08:15:17 -0700
Subject: [PATCH] Restore behavior of the "raises-exception" cell tag

Close #7015
---
 packages/cells/src/widget.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/cells/src/widget.ts b/packages/cells/src/widget.ts
index b9191cd04029..77aeea779c6a 100644
--- a/packages/cells/src/widget.ts
+++ b/packages/cells/src/widget.ts
@@ -1020,7 +1020,11 @@ export namespace CodeCell {
     }
 
     let cellId = { cellId: model.id };
-    metadata = { ...metadata, ...cellId };
+    metadata = {
+      ...model.metadata.toJSON(),
+      ...metadata,
+      ...cellId
+    };
     model.executionCount = null;
     cell.outputHidden = false;
     cell.setPrompt('*');