Modal Cart dontShowIfZero

Has anyone been able to get the display=“dontShowIfZero” working with the v65:modalCart tag? This documentation:

https://documentation.vin65.com/Designer-Launch/V65-Tag-Index/Header-Tags/v65-modalCart

shows it in their code, but doesn’t make any mention of it. I tried it and it doesn’t seem to do anything.

Thanks!

Dennis