修复一处更新

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@bd/core",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "type": "module",
   "description": "百搭UI组件库的核心",
   "main": "dist/index.js",

src/index.js

@@ -106,7 +106,7 @@ export class Component extends HTMLElement {
     // 若无定义props时, 手动执行一次渲染
     if (this[__pending__] === false) {
       this[__pending__] = true
-      this.performUpdate()
+      nextTick(_ => this[__updated__]())
     }
   }
 
@@ -178,8 +178,6 @@ export class Component extends HTMLElement {
 
   // 请求更新
   #requestUpdate(name, oldValue) {
-    let shouldUpdate = true
-
     this[__changed_props__].set(name, this[name])
     this[__prop2attr__](name, this[name])