Merged in feature/IO-3499-React-19 (pull request #2838)

Feature/IO-3499 React 19

client/src/components/shop-employees/shop-employees-add-vacation.component.jsx

@@ -21,15 +21,21 @@ export default function ShopEmployeeAddVacation({ employee }) {
     logImEXEvent("employee_add_vacation");
 
     setLoading(true);
-    let result;
+    if (!employee?.id) {
+      notification.error({
+        title: t("employees.errors.adding", { message: "Employee not loaded yet." })
+      });
+      return;
+    }
 
-    result = await insertVacation({
+    setLoading(true);
+    const result = await insertVacation({
       variables: { vacation: { ...values, employeeid: employee.id } },
       update(cache, { data }) {
         cache.modify({
           id: cache.identify({ id: employee.id, __typename: "employees" }),
           fields: {
-            employee_vacations(ex) {
+            employee_vacations(ex = []) {
               return [data.insert_employee_vacation_one, ...ex];
             }
           }