Hello Igor (and others), I have something else to report about the commit amend functionality in git-gui, and I think it could be related to my original question. It seems that git-gui messes up international signs on amending. E.g. I use git gui to make a commit, and all is OK: commit ef24b133dda6c18b8ef01b1a38f9e049d87f2021 Author: Juraj Oršulić <juraj.orsulic@xxxxxx> I open git gui again, click "Amend Last Commit", press "Commit", and I get this in git log: commit 6e09ff9edcef863d92f02cf86e0307c27171aec0 Author: Juraj OrÅ¡uliÄ<U+0087> <juraj.orsulic@xxxxxx> Does anyone have any idea what could be the cause? I tested this on Ubuntu 16.04 and HEAD vearsion of git-gui on http://repo.or.cz/git-gui.git, currently 0.21.0.5.g5ab72. Thanks, Juraj