The bug is ultimately caused by a bug in goocanvas/cairo (the libraries that are used to draw the timeline). It seems like it may have been fixed in goocanvas, but the version in Debian/Ubuntu is way out of date - and the Debian maintainer seems to have disappeared so we have been unable to get the later version into Debian.
The bug is ultimately caused by a bug in goocanvas/cairo (the libraries that are used to draw the timeline). It seems like it may have been fixed in goocanvas, but the version in Debian/Ubuntu is way out of date - and the Debian maintainer seems to have disappeared so we have been unable to get the later version into Debian.