fixes #3768

app/controllers/wiki_pages_controller.rb

@@ -54,13 +54,13 @@ class WikiPagesController < ApplicationController
   end
 
   def create
-    @wiki_page = WikiPage.create(wiki_page_params)
+    @wiki_page = WikiPage.create(wiki_page_create_params)
     respond_with(@wiki_page)
   end
 
   def update
     @wiki_page = WikiPage.find(params[:id])
-    @wiki_page.update(wiki_page_params)
+    @wiki_page.update(wiki_page_update_params)
     respond_with(@wiki_page)
   end
 
@@ -98,10 +98,18 @@ class WikiPagesController < ApplicationController
     end
   end
 
-  def wiki_page_params
+  def wiki_page_create_params
     permitted_params = %i[title body other_names skip_secondary_validations]
     permitted_params += %i[is_locked is_deleted] if CurrentUser.is_builder?
 
     params.fetch(:wiki_page, {}).permit(permitted_params)
   end
+
+  def wiki_page_update_params
+    permitted_params = %i[body other_names skip_secondary_validations]
+    permitted_params += %i[title is_locked is_deleted] if CurrentUser.is_builder?
+
+    params.fetch(:wiki_page, {}).permit(permitted_params)
+  end
+
 end