The source project of this merge request has been removed.
community/gtksourceview5: upgrade to 5.9.0
https://download.gnome.org/sources/gtksourceview/5.9/gtksourceview-5.9.0.news
tested with gnome-text-editor/gnome-builder on x86_64
https://download.gnome.org/sources/gtksourceview/5.9/gtksourceview-5.9.0.news
tested with gnome-text-editor/gnome-builder on x86_64