Problem with ListGridField "icon" type in 7.0 RC

[Xandros]

I add a field of type "icon" on ListGrid modifying "/smartclientSDK/isomorphic/system/reference/SmartClient_Explorer.html#imageType" as in the following code:

isc.ListGrid.create({
    ID: "countryList",
    width:200, height:224, alternateRecordStyles:true, 
    data: countryData,
showFilterEditor: true,
    fields:[
        {name:"countryCode", title:"Flag", width:50,
            type: "image",
            imageURLPrefix: "flags/16/",
            imageURLSuffix: ".png"
        },
        {name:"countryName", title:"Country"},
{name:"test", title:"test", canFilter: false, type:"icon", width:40, cellIcon:"flags/16/US.png"},

    ]
})

note that I use cellIcon and not icon to specify src of same image that I want show in all record.
As specified in documentation:
"Unless setting field.icon, setting field.cellIcon will not show an icon in the header" the header don't have icon.

But setting the field with "canFilter: false" shows the icon on empty filter space over the header.

[Xandros]

Please report this as bug

[Isomorphic]

Marked as a bug. You can use field.defaultFilterValue "" to get rid of the problem.

[Xandros]

The problem is still present in RC2, the workaround doesen't work for me.