Can not copy File Upload Field

Hi ZOHO Creator Team:

I have a Stateless Form from which I popup a (new) Form ... in the on Add on Load section of this popped up Form, I have code like ...

   
    //fetch Client Profile record for this Client
    thisClientProfile  =  Client_Profile  [Client_ID == input.Client_ID];
    input.Business_Name = thisClientProfile.Business_Name;
    input.Menu_File = thisClientProfile.Business_Menu;
    alert(input.Menu_File + "..." + thisClientProfile.Business_Menu);

Business_Name is a Single Line Text field ... Menu_File is a File Upload field.

When I run this Application, the Alert command displays the correct values for input.Menu_File and thisClientProfile.Business_Menu.

But as you see in the attached screenshot, the File Upload field does not get populated.

Also, in the on Validate section, I have code like ...

            
             //fetch Client Profile record for this Client
             thisClientProfile  =  Client_Profile  [Client_ID == input.Client_ID];
             thisClientProfile.Business_Menu = input.Menu_File;

But the record in the Client Profile Table does NOT get updated !!!

Is this another defect or is there another syntax for copying the contents of the File Upload field ?

Gaev