I've migrated my ez 4.3 to 4.4, I have a design I can check in admin.domain.com/Design. The latter has in the field RSS export: /rss/feed/my_feed
And the template /extension/ezwebin/design/ezwebin/templates/link.tpl shows this rss whatever it exists or not ! with the following code:
=> Definitely, at least, this piece of code should check the RSS export REALLY exists before showing it !
But I really thing the best solution would be to drop the RSS attribute in the design. And link.tpl should show all rss that exist by fetching the rss export...