[PATCH 1/3] Vala 0.5.0: Crash fix against selff==null in TrackerSelectionQuery::copy_str_list

[Cyrille Chépélov <cyrille chepelov keyconsulting fr>]

Greetings,

while hacking a bit on Rygel, I encountered a few segfaults. Here's a quick patchset against those.

    -- Cyrille

		Cyrille CHÉPÉLOV Recherche & Développement 41 rue Emile Duclaux, 92150 Suresnes Tel:    01 41 38 90 40 Fax:    01 41 38 90 41