Gorm The result of the update did not meet expectations.

I have defined two structs.

type User struct {
    Uid      string `json:"uid" gorm:"primaryKey; type:char(27)"` 
    Name     string `json:"name" form:"name" gorm:"size:64"`         
        Email    string `json:"email" form:"email" gorm:"index; size:64"` 
    Password string `json:"password" form:"password" gorm:"size:64"` 
}

type UpdateUserSchema struct {
    Name     string `form:"name"`
    Email    string `form:"email"`  
    Password string `form:"password"` 
}

When I run the following code:

userObj = User{uid: "123", Name: "123", Email: "123", Password:"123" }
userForm = UpdateUserSchema{ Name: "Tuffy" }

db.Model(&userObj).Updates(userForm)

my expected result is User{uid: "123", Name: "Tuffy", Email: "123", Password:"123" }, but what I get is User{uid: "Tuffy", Name: "123", Email: "123", Password:"123" }, Of course, the data in the database is correct.

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