Dictionary override on configuration item for sc_task table isn't working to filter choices

[RitaS]

We have configuration item as a field on incident, problem, and change.  The choice list is filtered to only include CIs from principal classes.  We are now capturing configuration item on sc_task records and the choice list is showing all CIs.  I've tried adding a dictionary override for the sc_task table, using the reference qualifier override.  Looking at incident override, it uses TaskUtils script include which is an extension of TaskUtilsSNF.  The OPS_FILTER_CLASSNAMES value includes only  incident and problem tables as the task types used in the filter.  My thought was that I needed to add sc_task to the task types.  I first tried creating a new script using the same script content but with the addition of the sc_task table.  I also tried setting the values in TaskUtils script to override TaskUtilsSNF.   Neither way works, I still see all of our configuration item records in the choice list when selecting from a service catalog task record.  

Here is the current dictionary override: 

And the reference qualifier override for sc_task:

Here is my override script include in TaskUtils:

I still see over a million configuration items in the choice list where incident and change are restricted to the principal class records, around 40,000 records.  

Am I missing something else that needs to be set for this to work with sc_task?

[RitaS]

I tried renaming the function in TaskUtils and updating it in the dictionary override, which didn't help.  I'm not sure how the script include override works in this case.  Like if I have the same function in the override file, it doesn't look at the function in the original script, right?  But I'm not making changes to the function, only the constant, so not sure why I need to replace the function.

[RitaS · Accepted solution]

Well this is really frustrating.  Just found this KBA:  https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0787996

It states that 

"The reference qualifier of the cmdb_ci field does not work when trying to override the task table's cmdb_ci field's reference in the catalog task.
Any value placed into the reference qualifier field in the dictionary override for catalog task gets ignored."

And then it says that they have decided not to fix it.  So I've basically wasted a bunch of time on something that doesn't work and apparently never will. 

[YaswanthKurre]

Hi Rita,

Thank you for the KB article, you can mark your answer and close this.

Regards,

Yaswanth