1. click the checkmark of the 1st row, it can select the row
2. click the button of the 2nd row to toggle edit mode
3. click the checkmar of the 2nd row
cannot select the 2nd row
users can select the 2nd row
- in zul.sel.SelectWidget._doItemSelect()
tg == cm is false
because the new rendered checkmark DOM is not the same as the checkmark referenced by listbox.