[glade] GtkImage: Fix icon size being reset

[Alberto Fanjul <albfan src gnome org>]

commit 58285e64e3bc346393b4986dc0aa969f15495ac0
Author: James Westman <flyingpimonster flyingpimonster net>
Date:   Mon Jul 15 14:34:45 2019 -0500

    GtkImage: Fix icon size being reset
    
    When you reloaded a file or changed the image type, the icon size was
    reset (not in the sidebar, but in the editor).

 plugins/gtk+/glade-gtk-image.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/plugins/gtk+/glade-gtk-image.c b/plugins/gtk+/glade-gtk-image.c
index 22cd3f98..3295ab1a 100644
--- a/plugins/gtk+/glade-gtk-image.c
+++ b/plugins/gtk+/glade-gtk-image.c
@@ -203,6 +203,10 @@ glade_gtk_image_set_property (GladeWidgetAdaptor *adaptor,
 
       GWA_GET_CLASS (GTK_TYPE_WIDGET)->set_property (adaptor, object,
                                                      id, value);
+
+      /* Set icon size back to what it should be */
+      if (!strcmp (id, "icon-name") || !strcmp (id, "stock"))
+        glade_property_sync (glade_widget_get_property (widget, "icon-size"));
     }
 }