[elpa] 01/01: Fix bug that caused undo-tree to hang when undoing in region (bug#16377).

[Barry O'Reilly]

epich pushed a commit to branch master
in repository elpa.

commit cad55641128d5396f6c49c3f3432f22e68a8de39
Author: Barry O'Reilly <address@hidden>
Date:   Thu May 1 16:42:52 2014 -0400

    Fix bug that caused undo-tree to hang when undoing in region (bug#16377).
---
 packages/undo-tree/undo-tree.el |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/undo-tree/undo-tree.el b/packages/undo-tree/undo-tree.el
index 166c079..cb8a230 100644
--- a/packages/undo-tree/undo-tree.el
+++ b/packages/undo-tree/undo-tree.el
@@ -1690,13 +1690,13 @@ Comparison is done with `eq'."
 (defun undo-tree-copy-list (undo-list)
   ;; Return a deep copy of first changeset in `undo-list'. Object id's are
   ;; replaced by corresponding objects from `buffer-undo-tree' object-pool.
-  (when undo-list
     (let (copy p)
       ;; if first element contains an object id, replace it with object from
       ;; pool, discarding element entirely if it's been GC'd
-      (while (null copy)
+    (while (and undo-list (null copy))
        (setq copy
              (undo-tree-restore-GC-elts-from-pool (pop undo-list))))
+    (when copy
       (setq copy (list copy)
            p copy)
       ;; copy remaining elements, replacing object id's with objects from