Redmine

If you give a project identifier the name 'issues' you won't be able to change further changes in project settings. After click on save in project settings Redmine stops at URL /projects/edit/issues with following error:
404 The page you were trying to access doesn't exist or has been removed.

Redmine version 0.9.4.stable
MySQL version 5.1.41 (i486)
Ruby version 1.8.7 (i486-linux)
RubyGems version 1.3.5
Rails version 2.2.3
Active Record version 2.2.3
Action Pack version 2.2.3
Active Resource version 2.2.3
Action Mailer version 2.2.3
Active Support version 2.2.3
Edge Rails revision unknown
Application root /usr/share/redmine
Environment production
Database adapter mysql
Database schema version 20100221100219