🐛 [open-formulieren/open-forms#4659] Ensure that textfield have a val…

…id empty value

src/components/formio/textfield.tsx

@@ -1,6 +1,6 @@
 import clsx from 'clsx';
 import {Field, useFormikContext} from 'formik';
-import {useContext, useRef} from 'react';
+import {useContext, useEffect, useRef} from 'react';
 
 import {RenderContext} from '@/context';
 import CharCount from '@/utils/charcount';
@@ -48,10 +48,13 @@ export const TextField: React.FC<JSX.IntrinsicElements['input'] & TextFieldProps
     props = {...props, value: ''};
   }
 
-  if (value === undefined || value === null) {
-    // Make sure value is valid
-    setFieldValue(name, '');
-  }
+  useEffect(() => {
+    if (value === undefined || value === null) {
+      // Make sure value is valid
+      setFieldValue(name, '');
+    }
+  }, [value]);
+
 
   // XXX: this is only accepted in the form builder to get to (close to) vanilla form
   // builder feature parity - setting the value with mask placeholders is bad for