[gnome-builder/wip/gtk4-port] libide/tree: add comment about action muxers

[Christian Hergert <chergert src gnome org>]

commit b75ea22616ca05b7b404dd593b4eb00d73ed3ece
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 2 16:11:05 2022 -0700

    libide/tree: add comment about action muxers

 src/libide/tree/ide-tree.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/src/libide/tree/ide-tree.c b/src/libide/tree/ide-tree.c
index 4a6790b77..acc87219a 100644
--- a/src/libide/tree/ide-tree.c
+++ b/src/libide/tree/ide-tree.c
@@ -654,6 +654,11 @@ ide_tree_show_popover_at_node (IdeTree     *self,
   g_return_if_fail (GTK_IS_POPOVER (popover));
   g_return_if_fail (gtk_widget_get_parent (GTK_WIDGET (popover)) == NULL);
 
+#if 0
+  /* Once this is in GTK, uncomment */
+  gtk_widget_set_action_parent (GTK_WIDGET (popover), GTK_WIDGET (self));
+#endif
+
   _ide_tree_node_show_popover (node, self, popover);
 }