The patch provided has been integrated upstream, see https://sourceforge.net/p/dia2code/git/ci/5dcd5ece80707a6787aa5e2f0102812127a9a3fa/
Thus, from dia2code maintainer point of view the bug can be closed. Regards, Oliver M. Kellogg - Maintainer, http://sourceforge.net/p/dia2code - mailto:okell...@users.sourceforge.net
