group and ungroup in Listgrid not working for unsaved records. is ita default behavoiur. unsaved records never take part in grouping , ungrouping and sorting.
in the below link it is not mentioned for group and ungroup option this is the default behaviour.
https://www.smartclient.com/smartgwt/javadoc/com/smartgwt/client/docs/UnsavedRecords.html
in the below link it is not mentioned for group and ungroup option this is the default behaviour.
https://www.smartclient.com/smartgwt/javadoc/com/smartgwt/client/docs/UnsavedRecords.html