Redmine

In the My account view, the source of an embedded Javascript is printed:

If I use the Chromium DevTool to disable the display: block style, the strange line disappears, but the UI is still functional. Any way to fix this in the code?

My configuration (basically Redmine 5 on Debian Bookworm aka testing):

Environment:
  Redmine version                5.0.4.stable
  Ruby version                   3.1.2-p20 (2022-04-12) [x86_64-linux-gnu]
  Rails version                  6.1.7
  Environment                    production
  Database adapter               PostgreSQL
  Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
  Mailer delivery                smtp
Redmine settings:
  Redmine theme                  Default

Thanks,
Albrecht.