Modify the code for the Save button on the viewTopic Custom Control
Change from
<xp:actionGroup>
<xp:saveDocument></xp:saveDocument><br/>
<xp:changeDocumentMode mode="readOnly"><br/>
</xp:changeDocumentMode><br/>
</xp:actionGroup>
To:
<xp:actionGroup>
<xp:save></xp:save><br/>
<xp:openPage target="openDocument"<br/>
name="/topicThread.xsp" documentId="#{javascript:dominoDoc.getNoteID()}">
</xp:openPage><br/>
</xp:actionGroup>