The patch has error, it does not work for the following example file
/tmp/example.org
* DONE s1
* DONE s2
* DONE s3

The below patch works for all the cases

diff --git a/lisp/org.el b/lisp/org.el
index 8a1fbd3..93d603f 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -12858,7 +12858,8 @@ only lines with a TODO keyword are included in the
outpu
        ;; Get the correct position from where to continue
        (if org-map-continue-from
            (goto-char org-map-continue-from)
-         (and (= (point) lspos) (end-of-line 1)))))
+         (and (= (point) lspos) (end-of-line 1)))
+       (setq org-map-continue-from nil)))
     (when (and (eq action 'sparse-tree)
               (not org-sparse-tree-open-archived-trees))
       (org-hide-archived-subtrees (point-min) (point-max)))

- Balamayam

On Thu, Dec 15, 2011 at 3:18 AM, bala subramaniyam <balamayam@gmail.com>wrote:

> Hi,
>              The variable "org-map-continue-from" is not reset to nil
> after the funcall to action in function "org-scan-tags".
>
> Heres the patch which works
>
> diff --git a/lisp/org.el b/lisp/org.el
> index 8a1fbd3..54ab5fb 100644
> --- a/lisp/org.el
> +++ b/lisp/org.el
> @@ -12848,7 +12848,8 @@ only lines with a TODO keyword are included in the
> output."
>               (setq org-map-continue-from nil)
>               (save-excursion
>                 (setq rtn1 (funcall action))
> -               (push rtn1 rtn)))
> +               (push rtn1 rtn))
> +             (setq org-map-continue-from nil))
>              (t (error "Invalid action")))
>
>             ;; if we are to skip sublevels, jump to end of subtree
>
> To see the error in action assume that we want to archive all the "DONE"
> states in the file
> /tmp/test.org which contains the following lines.
> * s1
> ** DONE ss1
> ** NEXT ss2
>
>
> (defun my-org-archive-subtree ()
>   (setq org-map-continue-from (point-at-bol))
>   (org-archive-subtree))
>
>  (org-map-entries 'my-org-archive-subtree "/DONE" (list "/tmp/test.org"))
>
> While the org-scan-tags funciton parses the first subheading(**DONE ss1)
> the match is
> successful and the function "my-org-archive-subtree" is called which sets
> the variable
> "org-map-continue-from" value to *beginning of line* and this variable is
> not set back to nil after the function call ends, which leads to infinite
> loop while parsing the subsequent headlines which does not match the "DONE"
> state(**NEXT ss2).
>
> Regards,
> Balamayam
>