Comment 9 for bug 913324

Running under valgrind I think this is likely the issue. Investigating.

==5537== Invalid read of size 1
==5537== at 0x4C2BFA2: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==5537== by 0x640DF4F: g_strdup (gstrfuncs.c:363)
==5537== by 0x59D1714: ??? (in /usr/lib/x86_64-linux-gnu/libatk-1.0.so.0.20609.1)
==5537== by 0x59D2E8C: atk_object_set_description (in /usr/lib/x86_64-linux-gnu/libatk-1.0.so.0.20609.1)
==5537== by 0x406307: panel_indicator_entry_accessible_new (in /usr/lib/unity/unity-panel-service.tedsave)
==5537== by 0x405483: ??? (in /usr/lib/unity/unity-panel-service.tedsave)
==5537== by 0x616B13F: g_closure_invoke (gclosure.c:777)
==5537== by 0x617C54F: signal_emit_unlocked_R (gsignal.c:3551)
==5537== by 0x61844AE: g_signal_emit_valist (gsignal.c:3300)
==5537== by 0x6184641: g_signal_emit (gsignal.c:3356)
==5537== by 0x4E373F4: indicator_object_set_visible (in /usr/lib/libindicator3.so.7.0.0)
==5537== by 0x19E90514: ??? (in /usr/lib/indicators3/7/libappmenu.so)
==5537== Address 0x1e6ca6e0 is 0 bytes inside a block of size 10 free'd
==5537== at 0x4C2A82E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==5537== by 0x63CEF2E: g_bytes_unref (gbytes.c:293)
==5537== by 0x6426520: g_variant_unref (gvariant-core.c:635)
==5537== by 0x63E1566: g_hash_table_insert_internal (ghash.c:1153)
==5537== by 0x10E7EB7B: dbusmenu_menuitem_property_set_variant (in /usr/lib/x86_64-linux-gnu/libdbusmenu-glib.so.4.0.12)
==5537== by 0x10E85CD0: ??? (in /usr/lib/x86_64-linux-gnu/libdbusmenu-glib.so.4.0.12)
==5537== by 0x10E85F3C: ??? (in /usr/lib/x86_64-linux-gnu/libdbusmenu-glib.so.4.0.12)
==5537== by 0x10E85AC9: ??? (in /usr/lib/x86_64-linux-gnu/libdbusmenu-glib.so.4.0.12)
==5537== by 0x5C54F56: g_simple_async_result_complete (gsimpleasyncresult.c:775)
==5537== by 0x5CAF2E9: reply_cb (gdbusproxy.c:2632)
==5537== by 0x5C54F56: g_simple_async_result_complete (gsimpleasyncresult.c:775)
==5537== by 0x5CA5771: g_dbus_connection_call_done (gdbusconnection.c:5339)