[nautilus/wip/ernestask/leak-plugging] Flatpak: Use Tracker branch with some fixes

[Ernestas Kulik <ernestask src gnome org>]

commit ad61217e9869f54787f25943033efe6c97127930
Author: Ernestas Kulik <ernestask gnome org>
Date:   Sat Oct 6 20:00:51 2018 +0300

    Flatpak: Use Tracker branch with some fixes

 build-aux/flatpak/org.gnome.Nautilus.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/build-aux/flatpak/org.gnome.Nautilus.yml b/build-aux/flatpak/org.gnome.Nautilus.yml
index 471187e0e..a5b55925e 100644
--- a/build-aux/flatpak/org.gnome.Nautilus.yml
+++ b/build-aux/flatpak/org.gnome.Nautilus.yml
@@ -68,6 +68,7 @@ modules:
     sources:
       - type: git
         url: https://gitlab.gnome.org/GNOME/tracker.git
+        branch: wip/ernestask/43
 
   - name: gnome-autoar
     sources: