Two/more Result Set in WEbi Query Panel

  There is a requirement to show Current fiscal week based on system date in BO Report developed on BEx Query.  Below steps are done to achieve this is done in BEx Query:

For this a customer exit is written to return current week and assigned to a formula variable in BEx Query.

1. Another formula variable is created with replacement path set to fiscal week. This return range of fiscal week.
2. A flag is created in Bex which compares results from step 1 and step 2 and return 1 where result matches else 0. In this way
   current week can be ascertain.

While on BEx side we get correct result, if this variable is used in BO Webi, Webi is getting two results set from BEx. Webi shows no value
in report.

Any idea why this is happening? Any workaround?

Please find snapshots attached.