We are using workflow moderation for some content types and sent out emails to the author once a node has been published.
Sometimes we have the case that an author changes a node after he has been published. When this revision gets published we want to send out a different email.
I have tried many different things but I haven't been able to find a way how to determine if this was the first time the node is published or a subsequent publish. Can someone please point me in the right direction how this can be achieved?