[gnome-online-accounts] identity: Don't leak the invocation when handling SignIn

[Debarshi Ray <debarshir src gnome org>]

commit 31abcf1066704c11fdf29dfe19e69a8e561b874a
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Jul 18 15:34:25 2016 +0200

    identity: Don't leak the invocation when handling SignIn
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756431

 src/goaidentity/goaidentityservice.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/goaidentity/goaidentityservice.c b/src/goaidentity/goaidentityservice.c
index ab2e1a9..2b0d1d9 100644
--- a/src/goaidentity/goaidentityservice.c
+++ b/src/goaidentity/goaidentityservice.c
@@ -303,6 +303,8 @@ on_sign_in_handled (GoaIdentityService    *self,
                                                      invocation,
                                                      object_path);
     }
+
+  g_object_unref (invocation);
 }
 
 static void