#2930: Custom filter is disappearing using filter search functionality

[gasserandreas]

Dear Datagrok team,

We've discovered a new bug using the custom filter API provided by your client core functionality.

Steps to reproduce:

1. Open any dataframe as tableview (I was using the demog dataset)
2. Add filters through code (example code: https://datagrok.ai/help/develop/how-to/custom-filters)
3. use filter search box

Expected behaviour:

• custom added filter is show if matching

Actual behavior:

• custom added filter is not shown

Important note: if the custom filter was adde through UI (using the drowdown "Add External"), the filter will not disappear while searching!

[dnillovna]

This issue has been mirrored in Jira: https://reddata.atlassian.net/browse/GROK-16249