[gnome-builder] change-monitor: remove weak reference from proper change monitor.

[Christian Hergert <chergert src gnome org>]

commit d902b1b93b305f480a9a15edfff135e2dd0df56a
Author: Christian Hergert <christian hergert me>
Date:   Sun Oct 12 18:52:53 2014 -0400

    change-monitor: remove weak reference from proper change monitor.

 src/editor/gb-source-change-gutter-renderer.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/editor/gb-source-change-gutter-renderer.c b/src/editor/gb-source-change-gutter-renderer.c
index df6bcd0..dcc90ec 100644
--- a/src/editor/gb-source-change-gutter-renderer.c
+++ b/src/editor/gb-source-change-gutter-renderer.c
@@ -75,7 +75,7 @@ gb_source_change_gutter_renderer_set_change_monitor (GbSourceChangeGutterRendere
       g_signal_handlers_disconnect_by_func (priv->change_monitor,
                                             G_CALLBACK (on_changed),
                                             renderer);
-      g_object_remove_weak_pointer (G_OBJECT (monitor),
+      g_object_remove_weak_pointer (G_OBJECT (priv->change_monitor),
                                     (gpointer *)&priv->change_monitor);
       priv->change_monitor = NULL;
     }
@@ -83,7 +83,7 @@ gb_source_change_gutter_renderer_set_change_monitor (GbSourceChangeGutterRendere
   if (monitor)
     {
       priv->change_monitor = monitor;
-      g_object_add_weak_pointer (G_OBJECT (monitor),
+      g_object_add_weak_pointer (G_OBJECT (priv->change_monitor),
                                  (gpointer *)&priv->change_monitor);
       g_signal_connect (priv->change_monitor,
                         "changed",