Enable searchInOpenEditors by default when not in stable

src/vs/workbench/contrib/search/browser/search.contribution.ts

@@ -24,6 +24,7 @@ import { registerSingleton } from 'vs/platform/instantiation/common/extensions';
 import { IInstantiationService, ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
 import { KeybindingsRegistry, KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry';
 import { IListService, WorkbenchListFocusContextKey, WorkbenchObjectTree } from 'vs/platform/list/browser/listService';
+import product from 'vs/platform/product/common/product';
 import { Extensions as QuickAccessExtensions, IQuickAccessRegistry } from 'vs/platform/quickinput/common/quickAccess';
 import { IQuickInputService } from 'vs/platform/quickinput/common/quickInput';
 import { Registry } from 'vs/platform/registry/common/platform';
@@ -1000,7 +1001,7 @@ configurationRegistry.registerConfiguration({
 		},
 		'search.experimental.searchInOpenEditors': {
 			type: 'boolean',
-			default: false,
+			default: product.quality !== 'stable',
 			markdownDescription: nls.localize('search.experimental.searchInOpenEditors', "Experimental. When enabled, an option is provided to make workspace search only search files that have been opened. **Requires restart to take effect.**")
 		}
 	}