### Description $subject ### Steps to Reproduce 1. Create an API. 2. Edit the API to add a new handler. 3. Add the first handler. 4. Click on the `Add Handler` button again. 5. Second handler section does not appear now. 6. Add a property to the first handler. 7. Now you can add the second handler. ### Version 2.4.1 ### Environment Details (with versions) _No response_