Datagrid table: new records

[wachterjohannes]

For new records no checkbox should be rendered.

Additionally sometimes when you add more records (fast) it happens that one field stays "on edit" and will be never saved.

[danrot]

Are you sure? This might make sense for a delete option, but there could also be other actions with selected rows that might also make sense to new rows. Should at least be configurable IMO.