When making an empty review (i.e., no comment, body top, body bottom, 

or Ship It) the review is recognized as a valid review and can be 

published. The problem is that when a review is detected as empty, 

the code doesn't raise a publish error so the empty review being 

published is blocked. 
I added a function to detect empty reviews. Once an empty review is 

trying to be published, an error is raised and the public state rolls 

back to previous state so it doesn't mess up the state when an error 

occurs (public state is a bool - when it's true, the review 

is considered as published).

Create a new review -> publish -> publish failed.

Create a new review -> give a comment -> delete the comment -> publish -> publish failed.

Create a new review -> give a header -> delete the header -> publish -> publish failed.

Create a new review -> give a footer -> delete the footer -> publish -> publish failed.

Create a new review -> check "Ship-It" -> publish -> publish success.