Redmine

Below is my environment:

Redmine 3.4.2.stable

Default administrator account changed    
Attachments directory writable    
Plugin assets directory writable (./public/plugin_assets)    
RMagick available (optional)    
ImageMagick convert available (optional)    
System info:    Linux f6a6d5c851ae 4.8.0-56-generic #61~16.04.1-Ubuntu SMP Wed Jun 14 11:58:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Uptime:    46 days

Environment:
  Redmine version                3.4.2.stable
  Ruby version                   2.3.4-p301 (2017-03-30) [x86_64-linux-gnu]
  Rails version                  4.2.8
  Environment                    production
  Database adapter               Mysql2
SCM:
  Subversion                     1.8.8
  Darcs                          2.8.4
  Mercurial                      2.8.2
  Cvs                            1.12.13
  Bazaar                         2.7.0
  Git                            2.13.0
  Filesystem                     
Redmine plugins:
  additionals                    2.0.2
  line_numbers                   1.0.0
  progressive_projects_list      3.0.1
  redmine_checklists             3.1.6
  redmine_didyoumean             1.2.0
  redmine_issue_templates        0.1.7
  redmine_local_avatars          1.0.3
  redmine_mail_reminder          3.0.0.0001
  redmine_mentions               0.0.1
  redmine_people                 1.3.1
  redmine_zenedit                0.0.2
  redmineup_tags                 2.0.0

Please post your wiki "comment" screen image.

I had thought this comment is like comment_form from this plugin.
Sorry waist your time!Thanks.