docs: Clarify a point in GtkApplication docs

Clarify that loading of automatic resources uses
the resource base path that was set at construction
time.

Fixes: #4300

diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index d48e49d13ae41e57e33cd2d5c0d1e21f06c5381e..7f3121c1b1e220e77e04229a892af4d3eda34338 100644 (file)
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -73,6 +73,10 @@
  * and accessed via [method@Gtk.Application.get_menu_by_id] which allows for
  * dynamic population of a part of the menu structure.
  *
+ * Note that automatic resource loading uses the resource base path
+ * that is set at construction time and will not work if the resource
+ * base path is changed at a later time.
+ *
  * It is also possible to provide the menubar manually using
  * [method@Gtk.Application.set_menubar].
  *