[WC-3284] Fix crash in number filter with saved attribute (#2109)

Author: r0b1n

packages/pluggableWidgets/datagrid-number-filter-web/CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Fixed
+
+- We fixed an issue where widgets with the Saved attribute configured would crash in some cases.
+
 ## [3.8.1] - 2026-02-19
 
 ### Changed

packages/shared/widget-plugin-filtering/src/helpers/useBasicSync.ts

@@ -31,7 +31,8 @@ export function useBasicSync<T extends string | Big>(props: Props<T>, store: Inp
 function createPusher<T extends string | Big>(pbox: PropBox<T>): Pusher<T> {
     return ([value1, _value2, _value3]) => {
         const props = pbox.current;
-        props.valueAttribute?.setValue(value1 ?? undefined);
+
+        props.valueAttribute?.setValue(((value1 instanceof Big ? new Big(value1) : value1) as T) ?? undefined);
 
         if (props.onChange?.canExecute) {
             props.onChange?.execute();