@ -78,7 +78,7 @@ BI.ButtonTree = BI.inherit(BI.ButtonGroup, {
var v = [];
BI.each(this.buttons, function (i, item) {
if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
v = BI.concat(v, item.getValue());
v = BI.union(v, item.getValue());
return;
}
if (item.isEnabled() && item.isSelected && item.isSelected()) {