jQuery Grid Plugin - jqGrid

Hi,

I have just upgrade from jQgrid 3.8.2 to 4.1.1

I have lots of grid in my web site. Before clicking on a column it was sending an ajax request to the server with different parameter set :

 'sord' // get the direction        

'sidx' // get index row - i.e. user click to sort        

'rows' // get how many rows we want to have into the grid 

'page' // get the requested page 

For param sidx in previous version I have the column name => for my column 'login' I have  sidx = login in http request.

Now with the new version I have sidx = list_login   =>  all my column names have this 'list_' string before.  Of course to work it need a refactory of all my code.

I wonder if I missed something because I was not able to find any reference in the changelog to this 'list_' add to column name in case of clicking a column header.

If someone can tell me if I am doing something wrong or if I have to change all my code everywhere  ;-(

Here is an example of one grid :

        {name:'login', width:100, sorttype:'text', editable:true, editrules:{required:true}},           
{name:'group', width:150, sorttype:'text'}, 
{name:'institute', width:150, sorttype:'text'}, 

Clicking on column header now give this in the http request :

sidx = list_login
or  sidx = list_group
or sidx = list_institute 

Thanks

Gael