I think, there is an issue related to links if they contain anchor with page position.
<h:outputLink value="/create.seam#"> Add <s:conversationId/> </h:outputLink>
is rendered to:
<a href="/create.seam#display?cid=150">Add</a>
instead of
<a href="/create.seam?cid=150#display">Add</a>
As workaround I create link using EL
<h:outputLink value="/create.seam#display?#{conversation.id}"> Add </h:outputLink>
Probably impacted tags:
<s:link> <s:conversationPropagation>
Correct workaround:
<h:outputLink value="/create.seam?#{conversation.id}#display"> Add </h:outputLink>