fix

app/views/pull_requests/index.json.jbuilder

@@ -7,7 +7,8 @@ json.limit @limit
 json.user_admin_or_member @user_admin_or_member
 json.user_admin_or_developer @user_admin_or_developer
 json.project_name @project.name
-json.project_author_name @project.owner.try(:login)
+json.project_author @project.owner.try(:login)
+json.project_author_name @project.owner.try(:show_real_name)
 
 json.issues do
   json.array! @issues.to_a do |issue|

app/views/pull_requests/show.json.jbuilder

@@ -20,7 +20,8 @@ end
 
 json.issue do
   json.extract! @issue, :id,:subject,:description,:is_private, :branch_name
-  json.project_author_name @project.owner.try(:login)
+  json.project_author @project.owner.try(:login)
+  json.project_author_name @project.owner.try(:show_real_name)
   #json.user_permission @user_permission
   json.closed_on @issue.closed_on.present? ? format_time(@issue.closed_on) : ""
   json.created_at format_time(@issue.created_on)