Redmine

During Issue/wiki_page creation/modification the preview link should display draft of the Issue/wiki_page before submition.

• The link stops to work after some time.
  the reason is unknown, but then only simple posts (plain text - no links or text formatting) can be previewed
  (maybe links to other sites/wiki_pages/files have something to do with this)
• also after the submition the browser shows just blank page instead of the modified Issue/wiki
  page needs to be refreshed or browsed into it again - after that the Issue/wiki_page is shown correctly
• to fix this, we always need to restart the server

About your application's environment
Ruby version 1.8.7 (x86_64-linux)
RubyGems version 1.3.7
Rack version 1.1.1
Rails version 2.3.11
Active Record version 2.3.11
Active Resource version 2.3.11
Action Mailer version 2.3.11
Active Support version 2.3.11
Edge Rails revision unknown
Application root /opt/redmine-1.2.1
Environment production
Database adapter mysql
Database schema version 20110511000000

The log contains no errors