[gnome-builder/gnome-builder-3-30] layout: clear page before unloading

[Christian Hergert <chergert src gnome org>]

commit 3cea9be75ab29457d942ff7c5fea4fcfd1512335
Author: Christian Hergert <chergert redhat com>
Date:   Tue Dec 11 21:03:01 2018 -0800

    layout: clear page before unloading
    
    This simplifies things for addins to only disconnect state in one place.

 src/libide/layout/ide-layout-stack.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/libide/layout/ide-layout-stack.c b/src/libide/layout/ide-layout-stack.c
index c6533571a..e6602eff4 100644
--- a/src/libide/layout/ide-layout-stack.c
+++ b/src/libide/layout/ide-layout-stack.c
@@ -437,6 +437,7 @@ ide_layout_stack_addin_removed (PeasExtensionSet *set,
   g_assert (plugin_info != NULL);
   g_assert (IDE_IS_LAYOUT_STACK_ADDIN (addin));
 
+  ide_layout_stack_addin_set_view (addin, NULL);
   ide_layout_stack_addin_unload (addin, self);
 }