Merge branch '27920-both-wip-messages-showing' into 'master'

Dispatch needed JS when creating a new MR in diff view

Closes #27920

See merge request !9238

2 files changed, 3 insertions, 1 deletions

diff --git a/app/controllers/projects/application_controller.rb b/app/controllers/projects/application_controller.rb
index db33b60b229..e2f81b09adc 100644
--- a/app/controllers/projects/application_controller.rb
+++ b/app/controllers/projects/application_controller.rb
@@ -83,7 +83,6 @@ class Projects::ApplicationController < ApplicationController
   end
 
   def apply_diff_view_cookie!
-    @show_changes_tab = params[:view].present?
     cookies.permanent[:diff_view] = params.delete(:view) if params[:view].present?
   end
 
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 63b5bcbb586..2bf3542d089 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -245,6 +245,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     respond_to do |format|
       format.html do
         define_new_vars
+        @show_changes_tab = true
         render "new"
       end
       format.json do
@@ -616,6 +617,8 @@ class Projects::MergeRequestsController < Projects::ApplicationController
 
     @labels = LabelsFinder.new(current_user, project_id: @project.id).execute
 
+    @show_changes_tab = params[:show_changes].present?
+
     define_pipelines_vars
   end