### Bug report Filterable configuration in ForeignKey is not serialized in TagHelper Grid. ### Reproduction of the problem Open [this REPL example](https://netcorerepl.telerik.com/cpuLEXaV21oSwYIq36) ### Current behavior Filterable configuration in ForeignKey is not serialized in TagHelper Grid. ### Expected/desired behavior Filterable configuration in ForeignKey should be serialized in TagHelper Grid. ### TicketID: 1692361 ### Environment * **Kendo UI version:** 2025.2.702 * **Browser:** [all]