Grouped ListGrid freeces on delete

[consultorpc]

Hi,

don't know if this has happened to anyone else, it's quite strange, I've this ListGrid:

                    isc.ListGrid.create({
                        ID: "poolMembersList",
                        width: 320,
                        height: 264,
                        dataSource: poolMembersDatasource,
                        autoFetchData:true,
                        selectionAppearance: "checkbox",
                        showConnectors: true,
                        canAcceptDroppedRecords: true,
                        canRemoveRecords: true,
                        preventDuplicates: false,
                        leaveScrollbarGap: false,                              
                        fields: [                           
                            { name: "parName", title: "Server" },
                            { name: "ServerName", title: "Name" }
                        ],
                        groupByField: "parName",
                        groupStartOpen: "all",
                        cellClick: function () {
                            poolMembersList.regroup();
                        }
                    })

When I delete the elements it works fine, so long as I don't delete the last one. I can delete as many as I want, but when I delete the last one, I can't do anyting else with the ListGrid, it freeces,

This doesn't happen if the ListGrid is not grouped. And also happens on every browser I've tryed, not giving any errors (checked with firebug)

Is this a known bug?

Regards,

Jose