created an attachment (id=157501)
screenshot

description:
value series is not specified but the text is filled when new series.

build number:
2.5.2.v20100128-0630

steps to reproduce:
1. new a chart binding to the data set.
2. specify category series and value series.
3. new series, check the text of series 2.

expected result:
the text is not filled.

actual result:
the text is filled up but when click "finish", error pops up indicating series 2 is undefined.

error log:
n/a
fixed. update the query expression even if its length is 0.
verified on build 2.5.2.v20100202-0900.
closed.