[gnome-builder] meson-templates: fix access to i18n

[Christian Hergert <chergert src gnome org>]

commit 9ee58b46063b6aec427656ecb04607a4d7f405da
Author: Christian Hergert <chergert redhat com>
Date:   Sun Jul 18 10:25:11 2021 -0700

    meson-templates: fix access to i18n

 src/plugins/meson-templates/meson_templates.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/meson-templates/meson_templates.py b/src/plugins/meson-templates/meson_templates.py
index 106227267..f4be02cb3 100644
--- a/src/plugins/meson-templates/meson_templates.py
+++ b/src/plugins/meson-templates/meson_templates.py
@@ -147,7 +147,8 @@ class MesonTemplate(Ide.TemplateBase, Ide.ProjectTemplate):
         scope.get('spaces').assign_string(" " * len(prefix_))
         scope.get('Spaces').assign_string(" " * len(PreFix))
 
-        enable_gnome = isinstance(self, GnomeProjectTemplate)
+        enable_gnome = (isinstance(self, GnomeProjectTemplate) or
+                        isinstance(self, GnomeGTK4ProjectTemplate))
         scope.get('project_version').assign_string('0.1.0')
         scope.get('enable_i18n').assign_boolean(enable_gnome)
         scope.get('enable_gnome').assign_boolean(enable_gnome)