From: Glenn Morris <rgm@gnu.org>
Date: Tue, 2 Nov 2010 04:06:44 +0000 (-0700)
Subject: * lisp/gnus/gnus-util.el: Comment.
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* lisp/gnus/gnus-util.el: Comment.
---

diff --git a/lisp/gnus/gnus-util.el b/lisp/gnus/gnus-util.el
index 94b7c633196..e9e896963b3 100644
--- a/lisp/gnus/gnus-util.el
+++ b/lisp/gnus/gnus-util.el
@@ -1658,6 +1658,8 @@ SPEC is a predicate specifier that contains stuff like `or', `and',
 (defun gnus-iswitchb-completing-read (prompt collection &optional require-match
                                             initial-input history def)
   "`iswitchb' based completing-read function."
+  ;; Make sure iswitchb is loaded before we let-bind its variables.
+  ;; If it is loaded inside the let, variables can become unbound afterwards.
   (require 'iswitchb)
   (let ((iswitchb-make-buflist-hook
          (lambda ()