description:
multiple values can not be selected the first time in the "select value dialogue".

build number:
2.5.2.v20100106-0630

steps to reproduce:
1. new a data set, add filter with operator "in".
2. select "<select value...>" in the "value" list, the first value "a" is selected in the "select value" dialogue.
3. press "shift" button, select another value "b".

expected result:
the values from "a" to "b" are selected.

actual result:
the value "b" is selected.

error log:
n/a
fixed.
verified in build (2.5.2.v20100113-0630), closed.