From 40d5667e634f466488c041f6af83f6277b2a0d5f Mon Sep 17 00:00:00 2001
From: Chris LaFreniere <40371649+chlafreniere@users.noreply.github.com>
Date: Wed, 28 Aug 2019 11:49:57 -0700
Subject: [PATCH] Don't Inform extHostNotebookDocuments Unnecessarily on Cell
 Source Changes (#6981)

* Dont tell exthostnotebookdocuments on cell source

* Update comment
---
 .../api/browser/mainThreadNotebookDocumentsAndEditors.ts   | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/sql/workbench/api/browser/mainThreadNotebookDocumentsAndEditors.ts b/src/sql/workbench/api/browser/mainThreadNotebookDocumentsAndEditors.ts
index f14e84749b..fa3baaaf9d 100644
--- a/src/sql/workbench/api/browser/mainThreadNotebookDocumentsAndEditors.ts
+++ b/src/sql/workbench/api/browser/mainThreadNotebookDocumentsAndEditors.ts
@@ -574,7 +574,12 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 		addedEditors.forEach(editor => {
 			let modelUrl = editor.uri;
 			const store = new DisposableStore();
-			store.add(editor.contentChanged((e) => this._proxy.$acceptModelChanged(modelUrl, this._toNotebookChangeData(e, editor))));
+			store.add(editor.contentChanged((e) => {
+				// Cell source updates are handled by vscode editor updates in main/extHost Documents
+				if (e.changeType !== NotebookChangeType.CellSourceUpdated) {
+					this._proxy.$acceptModelChanged(modelUrl, this._toNotebookChangeData(e, editor));
+				}
+			}));
 			this._modelToDisposeMap.set(editor.uri.toString(), store);
 		});
 	}