Continuum Release ignores scm configuration

We have a maven project (http://xxx/svn/main/trunk/mvnproject) in a subversion repository. The maven project is registered in Continuum with the scm url scm:svn:http://xxx/svn/main/trunk/mvnproject. The main pom.xml contains the following scm section

<scm>
<connection>scm:svn:http://xxx/svn/main/trunk/</connection>
<developerConnection>scm:svn:http://xxx/svn/main/trunk/</developerConnection>
<url>http://xxx/viewvc/main/trunk/</url>
</scm>

Releasing the mvnproject with the maven release plugin creates the tag from the trunk (http://xxx/svn/trunk) whereas releasing from Continuum creates the tag from the maven project url (http://xxx/svn/trunk/mvnproject).

I expected that Continuum would behave like the mvn release plugin.