[folks] dummy: Don’t modify a HashMap while itera ting over it

[Philip Withnall <pwithnall src gnome org>]

commit 6c2b65a8fd3480b84b646d8e24a8a136a701f4b5
Author: Renato Araujo Oliveira Filho <renatox gmail com>
Date:   Wed Jun 25 19:59:00 2014 +0000

    dummy: Don’t modify a HashMap while iterating over it
    
    Iterate over a copy instead.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732244

 NEWS                                  |    1 +
 backends/dummy/lib/dummy-backend.vala |    3 ++-
 2 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 359a2d2..cb938d0 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,7 @@ Major changes:
    file systems, such as Tinycorelinux
 
 Bugs fixed:
+ • Bug 732244 — Fail to unprepare stores
 
 API changes:
 
diff --git a/backends/dummy/lib/dummy-backend.vala b/backends/dummy/lib/dummy-backend.vala
index 2122559..a7c5062 100644
--- a/backends/dummy/lib/dummy-backend.vala
+++ b/backends/dummy/lib/dummy-backend.vala
@@ -282,7 +282,8 @@ public class FolksDummy.Backend : Folks.Backend
           this._prepare_pending = true;
           this.freeze_notify ();
 
-          foreach (var persona_store in this._enabled_persona_stores.values)
+          var enabled_stores = this._enabled_persona_stores.values.to_array ();
+          foreach (var persona_store in enabled_stores)
             {
               this._disable_persona_store (persona_store);
             }