[gnome-builder] egg-task-cache: Don't leak the GTask used to fetch the value

[Christian Hergert <chergert src gnome org>]

commit d87cd3575e848d541d754270b99c024db9cfb630
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Mar 6 17:37:43 2017 +0100

    egg-task-cache: Don't leak the GTask used to fetch the value
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779659

 contrib/egg/egg-task-cache.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/contrib/egg/egg-task-cache.c b/contrib/egg/egg-task-cache.c
index e8c3fff..8b2fa69 100644
--- a/contrib/egg/egg-task-cache.c
+++ b/contrib/egg/egg-task-cache.c
@@ -548,6 +548,7 @@ egg_task_cache_fetch_cb (GObject      *object,
     }
 
   self->key_destroy_func (key);
+  g_object_unref (task);
 
   EGG_COUNTER_DEC (in_flight);
 }