converting field json string to map failed after upgrading to v2.6.0

[gqcn]

1. What version of Go and system type/arch are you using?

go 1.20.0

2. What version of GoFrame are you using?

goframe v2.6.0

3. Can this issue be re-produced with the latest release?

yes

4. What did you do?

sql:

DROP TABLE IF EXISTS `sys_config`;
CREATE TABLE `sys_config`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '配置名称',
  `value` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL COMMENT '配置值',
  `created_at` timestamp NULL DEFAULT NULL COMMENT '创建时间',
  `updated_at` timestamp NULL DEFAULT NULL COMMENT '更新时间',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `name`(`name`(191)) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 50 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = COMPACT;

-- ----------------------------
-- Records of sys_config
-- ----------------------------
INSERT INTO `sys_config` VALUES (49, 'site', '{\"banned_ip\":\"22\",\"filings\":\"2222\",\"fixed_page\":\"\",\"site_name\":\"22\",\"version\":\"22\"}', '2023-12-19 14:08:25', '2023-12-19 14:08:25');

main.go

package main

import (
	"fmt"

	_ "github.com/gogf/gf/contrib/drivers/mysql/v2"

	"github.com/gogf/gf/v2/frame/g"
)

func main() {
	type SysConfigInfo struct {
		Name  string            `json:"name"      ` // 配置名称
		Value map[string]string `json:"value"     ` // 配置值
	}

	var configData SysConfigInfo
	err := g.Model("sys_config").Scan(&configData)
	fmt.Println(err)
	fmt.Println(configData)
}

5. What did you expect to see?

{site map[banned_ip:22 filings:2222 fixed_page: site_name:22 version:22]}

6. What did you see instead?

{site map[]}