[gi-docgen] generate: Use FQTN for the hierarchy roots

[Emmanuele Bassi <ebassi src gnome org>]

commit 34624f8069e8095c8ab7d8c8757fb7ca5fdd3033
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Apr 28 18:08:54 2021 +0100

    generate: Use FQTN for the hierarchy roots

 gidocgen/gdgenerate.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gidocgen/gdgenerate.py b/gidocgen/gdgenerate.py
index 6db8bcb..45cf873 100644
--- a/gidocgen/gdgenerate.py
+++ b/gidocgen/gdgenerate.py
@@ -2317,10 +2317,10 @@ def gen_types_hierarchy(config, theme_config, output_dir, jinja_env, repository)
         }
 
     # All GObject sub-types
-    objects_tree = subtree('Object', flat_tree)
+    objects_tree = subtree('GObject.Object', flat_tree)
 
     # All GInitiallyUnowned sub-types
-    unowned_tree = subtree('InitiallyUnowned', flat_tree)
+    unowned_tree = subtree('GObject.InitiallyUnowned', flat_tree)
 
     # All GTypeInstance sub-types
     typed_tree = subtree(None, flat_tree)