[gnome-text-editor] sourceview: force clear actions/menu on dispose

[Christian Hergert <chergert src gnome org>]

commit dbb943c453882296409e26965382000f61b39b5d
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jun 24 14:06:33 2022 -0700

    sourceview: force clear actions/menu on dispose
    
    To help avoid risks of these sticking around in the action muxer longer
    than we want, clear them as part of dispose.

 src/editor-source-view.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/editor-source-view.c b/src/editor-source-view.c
index ac37959..d7f6e40 100644
--- a/src/editor-source-view.c
+++ b/src/editor-source-view.c
@@ -742,6 +742,9 @@ editor_source_view_dispose (GObject *object)
 {
   EditorSourceView *self = (EditorSourceView *)object;
 
+  gtk_text_view_set_extra_menu (GTK_TEXT_VIEW (self), NULL);
+  gtk_widget_insert_action_group (GTK_WIDGET (self), "spelling", NULL);
+
   g_clear_object (&self->css_provider);
   g_clear_object (&self->spelling_menu);
   g_clear_pointer (&self->spelling_word, g_free);