diff -up pygobject-3.8.2/gi/pygi-marshal-cleanup.c.gvalue-memory-leak pygobject-3.8.2/gi/pygi-marshal-cleanup.c

--- pygobject-3.8.2/gi/pygi-marshal-cleanup.c.gvalue-memory-leak	2013-03-04 04:19:22.000000000 -0500

+++ pygobject-3.8.2/gi/pygi-marshal-cleanup.c	2014-09-26 09:04:12.780688672 -0400

@@ -29,16 +29,17 @@ _cleanup_caller_allocates (PyGIInvokeSta

 {

     PyGIInterfaceCache *iface_cache = (PyGIInterfaceCache *)cache;

-    if (g_type_is_a (iface_cache->g_type, G_TYPE_BOXED)) {

+    /* check GValue first because GValue is also a boxed sub-type */

+    if (g_type_is_a (iface_cache->g_type, G_TYPE_VALUE)) {

+        if (was_processed)

+            g_value_unset (data);

+        g_slice_free (GValue, data);

+    } else if (g_type_is_a (iface_cache->g_type, G_TYPE_BOXED)) {

         gsize size;

         if (was_processed)

             return; /* will be cleaned up at deallocation */

         size = g_struct_info_get_size (iface_cache->interface_info);

         g_slice_free1 (size, data);

-    } else if (iface_cache->g_type == G_TYPE_VALUE) {

-        if (was_processed)

-            g_value_unset (data);

-        g_slice_free (GValue, data);

     } else if (iface_cache->is_foreign) {

         if (was_processed)

             return; /* will be cleaned up at deallocation */