Fix #38157

src/vs/platform/search/common/search.ts

@@ -198,8 +198,9 @@ export function getExcludes(configuration: ISearchConfiguration): glob.IExpressi
 	}
 
 	let allExcludes: glob.IExpression = Object.create(null);
-	allExcludes = objects.mixin(allExcludes, fileExcludes);
-	allExcludes = objects.mixin(allExcludes, searchExcludes, true);
+	// clone the config as it could be frozen
+	allExcludes = objects.mixin(allExcludes, objects.clone(fileExcludes));
+	allExcludes = objects.mixin(allExcludes, objects.clone(searchExcludes), true);
 
 	return allExcludes;
 }

src/vs/workbench/browser/parts/editor/editorPart.ts

@@ -174,7 +174,7 @@ export class EditorPart extends Part implements IEditorPart, IEditorGroupService
 					]
 				}
 			*/
-			this.telemetryService.publicLog('workbenchEditorConfiguration', editorConfig);
+			this.telemetryService.publicLog('workbenchEditorConfiguration', objects.clone(editorConfig)); // Clone because telemetry service will modify the passed data by adding more details.
 		} else {
 			this.tabOptions = {
 				previewEditors: true,