[gtk/clarify-gapplication-docs] docs: Clarify a point in GtkApplication docs

[Matthias Clasen <matthiasc src gnome org>]

commit 917aa7928d1f3190a8976b852c6d0da593fb0066
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Oct 18 23:47:48 2022 -0400

    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

 gtk/gtkapplication.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index d48e49d13a..7f3121c1b1 100644
--- 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].
  *