JIRA 7.12.2 handling of requests with special characters

[tailtwo]

Hello,

It seems there is an important issue in the 7.12.2 release of JIRA that mess up requests with special characters :
https://confluence.atlassian.com/jirakb/changing-server-xml-to-handle-requests-with-special-characters-958453799.html

There is a workaroud, but it requires to edit the server.xml, which is not persistant in this image. Would it be possible to add it in a new revision, perhaps by editing the docker-entrypoint.sh ?

Thank you.