code presenter raises GTK critical warnings

[demarey]

In Pharo Launcer GTK, when you select an image, then edit scripts, select one script and try to edit it, the code presenter raises a GTK critical warning at each ley stroke.

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.204: g_object_get_valist: value location for 'gint' passed as NULL

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.273: value_lcopy_int: assertion 'int_p != NULL' failed

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.273: g_object_get_valist: value location for 'gint' passed as NULL

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.459: value_lcopy_int: assertion 'int_p != NULL' failed

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.459: g_object_get_valist: value location for 'gint' passed as NULL

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.564: value_lcopy_int: assertion 'int_p != NULL' failed

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.564: g_object_get_valist: value location for 'gint' passed as NULL

(Pharo Launcher:51391): GLib-GObject-CRITICAL **: 12:51:55.588: value_lcopy_int: assertion 'int_p != NULL' failed