fixed 贡献者匹配用户email，名称区分

app/views/repositories/_contributor.json.jbuilder

@@ -16,7 +16,7 @@ if user.present?
     json.login user.login
     json.email user.mail
     json.type user.type
-    json.name user.real_name
+    json.name (user["name"] || contributor["name"] || contributor["login"]).to_s.downcase
     json.image_url url_to_avatar(user)
     json.contribution_perc user.simple_contribution_perc(project, contributor["contribution_perc"]) if user.present?
   end