Gitlab doesn't show special characters like tilde ´ in graphical interface and generate problem with projects in Jenkins

The problem that was generated in jenkins was solved by modifying the file encoding_helper.rb indicated in the following link: https://github.com/xRayDev/gitlab_windows1251/commit/ac65ae9bbafe528566324e6065bf867658ec4dec

But in the Gitlab GUI, characters with accents are still hidden. Anyone have a solution for this display problem?

Thank you.