When creating a new NavigationToolStorage using the NavigationToolManager plugin, the created storage does not show up in the list of tool storages available in the plugin. The storage can, however, be saved.

Reproduced on current master (https://phabricator.mitk.org/rMITK4fc21ac8095fa044e22978318fa00d8126c5ac44) Win7, VS2015, x32