fix(case manager): assignee select having no deterministic value (#1053)

Author: ChibiBlasphem

packages/app-builder/src/components/Cases/EditAssignee.tsx

@@ -105,6 +105,7 @@ export const EditCaseAssignee = ({
                       <MenuCommand.Item
                         key={userId}
                         className="cursor-pointer"
+                        value={userId}
                         onSelect={() => {
                           field.handleChange(userId === selectedUserId ? null : userId);
                           form.handleSubmit();