[folks] core: Fix comparison of updated local IDs

[Philip Withnall <pwithnall src gnome org>]

commit fe0924d063d03637331fefe39cbb8b024342ed44
Author: Philip Withnall <philip tecnocode co uk>
Date:   Thu Oct 4 08:30:25 2012 +0100

    core: Fix comparison of updated local IDs
    
    We should be comparing a set of strings, not a set of AbstractFieldDetails.
    This fixes a crash in the link-personas-via-local-ids Tracker test.

 folks/individual.vala |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/folks/individual.vala b/folks/individual.vala
index 5e43736..18c9576 100644
--- a/folks/individual.vala
+++ b/folks/individual.vala
@@ -2272,7 +2272,8 @@ public class Folks.Individual : Object,
                     }
                 }
 
-              if (!Utils.set_afd_equal (new_local_ids, this._local_ids))
+              if (new_local_ids.size != this._local_ids.size ||
+                  !new_local_ids.contains_all (this._local_ids))
                 {
                   this._local_ids = new_local_ids;
                   this._local_ids_ro = new_local_ids.read_only_view;