Go Gin.context无法正确获取/更新值

Question

对于正在创建的应用程序，后端服务器具有以下端点。

api := router.Group("/api") {
    api.POST("/isFollowing", func(c *gin.Context) {
        id := c.PostForm("id")
        sessionId := c.PostForm("session_id")
        charityId := c.PostForm("charity_id")
        fmt.Printf("just received id: %s, session id: %s, charity id: %s",id, sessionId, charityId)
    })
}

在Postman中测试此功能时，我将发送诸如id=1&session_id=2&charity_id=3之类的表格数据，并且该功能将按预期打印just received id: 1, session id: 2, charity id: 3。之后，我将发送id=1&session_id=2&charity_id=4，但是即使在请求中just received id: 1, session id: 2, charity id: 3参数已更改，该函数仍会打印charity_id。 为什么不打印just received id: 1, session id: 2, charity id: 3？

编辑：我添加了它所在的组