Resolve "Refresh workflow execution list"

Closes #52 (closed)

src/components/parameter-schema/form-mode/ParameterStringInput.vue

@@ -114,7 +114,7 @@ function updateValue() {
       "update:modelValue",
       !s3Path.bucket && s3Path.key
         ? undefined
-        : `s3://${s3Path.bucket}/${s3Path.key}`
+        : `s3://${s3Path.bucket}/${s3Path.key ?? ""}`
     );
   } else {
     emit(