fix(mp): 小程序平台使用插槽热更新时，丢失 genericComponents 信息 question/136258

packages/uni-cli-shared/lib/cache.js

@@ -87,6 +87,9 @@ function updateComponentJson (name, jsonObj, usingComponents = true, type = 'Com
       const oldJsonObj = JSON.parse(oldJsonStr)
       jsonObj.usingComponents = oldJsonObj.usingComponents || {}
       jsonObj.usingAutoImportComponents = oldJsonObj.usingAutoImportComponents || {}
+      if(oldJsonObj.genericComponents) {
+        jsonObj.genericComponents = oldJsonObj.genericComponents
+      }
       if (oldJsonObj.usingGlobalComponents) { // 复制 global components(针对不支持全局 usingComponents 的平台)
         jsonObj.usingGlobalComponents = oldJsonObj.usingGlobalComponents
       }