Use kcm_cursortheme
1)
In size combobx, change the value, hit apply, then press default, should reset combobox value to default2 test case
2)
* In size combobx, change the value, hit apply, then press default, should reset combobox value to default
* Also in size combobx, press and hold the mose, hover to change the value and then release mouse button to set the new value, hit apply, then hit default, combobox value should be set to default value.