Weird behaviour using liquibase:diff

Hi all, would appreciate some help regarding this issue. 

Upon running mvn liquibase:diff, I’m seeing weird behaviour where uniqueConstraints are being dropped then added again

   

   

 

 

   

   

 

I’m using liquibase version 3.6.3 with liquibase-hibernate5 version 3.6.

@Entity

@Table(name = "user", uniqueConstraints = {

        @UniqueConstraint(name = "uk_login_user", columnNames = { "login" }),

        @UniqueConstraint(name = "uk_email_user", columnNames = { "email" })

})

public class User @Email

    @Size(max = 100)

    @Column(length = 100)

    private String email;

}