Reopening - AFAICT the fix introduces a minor glitch with GTK2 builds: both rulers render an additional line at the edge of the canvas, which didn't exist before the more recent commits, and is not present with GTK3 builds (see attached screenshot with GTK+/X11 2.24.13 using the GTK2 Adwaita theme from Gnome 3.4).
Reopening - AFAICT the fix introduces a minor glitch with GTK2 builds: both rulers render an additional line at the edge of the canvas, which didn't exist before the more recent commits, and is not present with GTK3 builds (see attached screenshot with GTK+/X11 2.24.13 using the GTK2 Adwaita theme from Gnome 3.4).