I'm using Krita mainly through the snap package and I have its icon pinned to the Unity launcher. My problem is, every time Krita updates through the snap repositories, the launcher icon disappears and I have to run the application (because I can't pin app icons in the dash, unlike Windows 7), and lock its icon to the launcher.

Can this be fixed? I know that Unity is on the way out, but AFAIK Gnome 3 also has an application launcher, so this problem could appear there, too.