[gnome-games] flatpak: Pin down tracker commit

[Adrien Plazas <aplazas src gnome org>]

commit d3dd18a77db4d8daa9c69a5046492b72ef991ae6
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Thu Jul 26 19:57:33 2018 +0500

    flatpak: Pin down tracker commit

 flatpak/org.gnome.Games.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/flatpak/org.gnome.Games.json b/flatpak/org.gnome.Games.json
index 351f60e0..fd1c0cde 100644
--- a/flatpak/org.gnome.Games.json
+++ b/flatpak/org.gnome.Games.json
@@ -99,7 +99,8 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/tracker.git";
+                    "url" : "https://gitlab.gnome.org/GNOME/tracker.git";,
+                    "commit" : "2f7ade534a452153ab9f0faa10e403b30e845c75"
                 }
             ]
         },