EditDiscussionAction checks for same Exception that shouldn't occur

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.0.6 GA, 6.0.11 EE
• Fix Version/s: --Sprint - SP, 6.0.12 EE, 6.1.0 CE RC1
• Component/s: Dev Tools, Frontend Infrastructure > UI Taglibs
• Labels: None
• Branch Version/s:
  6.0.x
• Backported to Branch:
  Committed

EditDiscussionAction.java is checking for the following Exceptions to occur: FileExtensionException, FileNameException, FileSizeException, MessageSubjectException.

However, these exceptions do not apply to comments (there is no way to add files to comments and there is no subject in the comments.