This seems to be fixed upstream in their mercurial repo, according to: https://sourceforge.net/p/joe-editor/bugs/354/ https://sourceforge.net/p/joe-editor/mercurial/ci/e050c4a911bb4f84b51e3c931e424477c217c972/
And therefore I think should be fixed by updating the package to the upstream 4.3 release.
