2 Required fields but only one must be filled

Hello
I saw this thread:
https://wordpress.org/support/topic/plugin-contact-form-7-two-required-fields-but-only-one-must-be-filled?replies=7

But it doesn’t seem to be working with the last version of the plugin.
Has anyone gotten this to work?

Thanks
Dan

https://wordpress.org/plugins/contact-form-7/