fix initialise call once application has already been started

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1448646 13f79535-47bb-0310-9956-ffa450edef68
correctly re initialize model

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1448647 13f79535-47bb-0310-9956-ffa450edef68