My code is the following:
<div class="container-fluid" th:object="${content}">
<span th:text="*{poster}?: 'no poster'"></span>
</div>
If poster is null, then the span should display "no poster". Instead it displays "N/A":
<span>N/A</span>
When the poster is present, it behaves as expected.
I looked at the documentation and couldn't understand where my mistake is.