[gtkada] Problem with Gtk_About_Dialog

[Michael González Harbour]

Hello,

I am using a Gtk_About_Dialog under version gtkada-3.4.2-gpl in Linux. 
When I click on the "License" button I get the following error message:

(testgtk:3413): GLib-GObject-WARNING **: g_object_set_valist: object 
class 'GtkTextTag' has no property named 'font-scale'

(testgtk:3413): Gtk-CRITICAL **: gtk_text_buffer_apply_tag: assertion 
'tag->priv->table == buffer->priv->tag_table' failed

The same happens in testgtk. Is this a known problem?

Thanks,

Michael González