[13.0] web_advanced_search: "Search more" with string on custom filter does nothing

[MarcoKlemenc]

Module

web_advanced_search

Describe the bug

When a record is selected after introducing some text and clicking "Search more" on a "is equal to" condition, the popup closes but the filter is not applied.

To Reproduce

Affected versions: 13.0

Steps to reproduce the behavior:

1. Open the "Add Custom Filter" section on filters
2. Select a M2O field (such as "Partner" on invoices)
3. Choose the "Is equal to" condition
4. Type something in the search box to filter the available records, inclusive enough for the "Search more" option to show up
5. Click on "Search more" to open the popup window
6. Choose any record

Expected behavior
The popup should close and the filter should be applied, showing me only the records whose partner matches the one I chose

Additional context
The popup closes but no filter is applied