fix: correctly handle null/undefined values in entitypicker._entity subscription

modules/entity-picker/client/entity-picker-utils.ts

@@ -41,7 +41,9 @@ export const subscibeEntityByEntityPickerValue: <
       const [prevOptions, prevValue] = prev;
       const [currOptions, currValue] = curr;
       return (
-        (prevValue === currValue || !prevValue === !currValue) &&
+        (prevValue === currValue ||
+          (prevValue === null && currValue === undefined) ||
+          (prevValue === undefined && currValue === null)) &&
         prevOptions?.class === currOptions?.class &&
         JSON.stringify(prevOptions?.selectionSet) === JSON.stringify(currOptions?.selectionSet)
       );