Notify no need to save on save

src/vs/workbench/parts/files/electron-browser/fileCommands.ts

@@ -42,6 +42,7 @@ import { EditorContextKeys } from 'vs/editor/common/editorContextKeys';
 import { IEditorService, SIDE_GROUP } from 'vs/workbench/services/editor/common/editorService';
 import { IEditorGroupsService } from 'vs/workbench/services/group/common/editorGroupsService';
 import { ILabelService } from 'vs/platform/label/common/label';
+import { SettingsEditor2 } from 'vs/workbench/parts/preferences/browser/settingsEditor2';
 
 // Commands
 
@@ -161,6 +162,11 @@ function save(
 
 		// Just save
 		return textFileService.save(resource, { force: true /* force a change to the file to trigger external watchers if any */ });
+	} else if (resource && resource.scheme === Schemas.vscode) {
+		const activeControl = editorService.activeControl;
+		if (activeControl instanceof SettingsEditor2) {
+			activeControl.notifyNoSaveNeeded();
+		}
 	}
 
 	return TPromise.as(false);

src/vs/workbench/parts/preferences/browser/settingsEditor2.ts

@@ -488,11 +488,15 @@ export class SettingsEditor2 extends BaseEditor {
 		}));
 	}
 
-	private onDidChangeSetting(key: string, value: any): void {
-		if (!this.storageService.getBoolean('hasNotifiedOfSettingsAutosave', StorageScope.GLOBAL, false)) {
+	public notifyNoSaveNeeded(force: boolean = true) {
+		if (force || !this.storageService.getBoolean('hasNotifiedOfSettingsAutosave', StorageScope.GLOBAL, false)) {
 			this.storageService.store('hasNotifiedOfSettingsAutosave', true, StorageScope.GLOBAL);
 			this.notificationService.info(localize('settingsNoSaveNeeded', "Your changes are automatically saved as you edit."));
 		}
+	}
+
+	private onDidChangeSetting(key: string, value: any): void {
+		this.notifyNoSaveNeeded(false);
 
 		if (this.pendingSettingUpdate && this.pendingSettingUpdate.key !== key) {
 			this.updateChangedSetting(key, value);