4 files changed, 18 insertions, 7 deletions

diff --git a/lisp/gnus/ChangeLog b/lisp/gnus/ChangeLog
index f780cf7b9f0..7c887dc5450 100644
--- a/lisp/gnus/ChangeLog
+++ b/lisp/gnus/ChangeLog
@@ -1,3 +1,12 @@
+2011-07-14  Andrew Cohen  <cohen@andy.bu.edu>
+
+        * nnimap.el (nnimap-request-thread): Ensure search is performed in
+        correct group.
+
+        * gnus-int.el (gnus-request-thread): Add group argument.
+
+        * gnus-sum.el (gnus-request-thread): Use it.
+
 2011-07-10  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
         * gnus-group.el (gnus-read-ephemeral-emacs-bug-group): `debbugs-*'
diff --git a/lisp/gnus/gnus-int.el b/lisp/gnus/gnus-int.el
index ef15a479892..b9b191cd09c 100644
--- a/lisp/gnus/gnus-int.el
+++ b/lisp/gnus/gnus-int.el
@@ -516,11 +516,12 @@ If BUFFER, insert the article in that group."
              article (gnus-group-real-name group)
              (nth 1 gnus-command-method) buffer)))
 
-(defun gnus-request-thread (header)
+(defun gnus-request-thread (header group)
   "Request the headers in the thread containing the article specified by HEADER."
-  (let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name)))
+  (let ((gnus-command-method (gnus-find-method-for-group group)))
     (funcall (gnus-get-function gnus-command-method 'request-thread)
-             header)))
+             header
+             (gnus-group-real-name group))))
 
 (defun gnus-warp-to-article ()
   "Warps from an article in a virtual group to the article in its
diff --git a/lisp/gnus/gnus-sum.el b/lisp/gnus/gnus-sum.el
index 798ae964460..5a817e12104 100644
--- a/lisp/gnus/gnus-sum.el
+++ b/lisp/gnus/gnus-sum.el
@@ -8970,7 +8970,7 @@ variable."
            'list gnus-newsgroup-headers
            (if (gnus-check-backend-function
                 'request-thread gnus-newsgroup-name)
-               (gnus-request-thread header)
+               (gnus-request-thread header gnus-newsgroup-name)
              (let* ((last (if (numberp limit)
                               (min (+ (mail-header-number header)
                                       limit)
diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index 43a3cbd859d..ef5bee71629 100644
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -1565,8 +1565,9 @@ textual parts.")
 (declare-function gnus-fetch-headers "gnus-sum"
                   (articles &optional limit force-new dependencies))
 
-(deffoo nnimap-request-thread (header)
-  (let* ((id (mail-header-id header))
+(deffoo nnimap-request-thread (header &optional group server)
+  (when (nnimap-possibly-change-group group server)
+      (let* ((id (mail-header-id header))
          (refs (split-string
                 (or (mail-header-references header)
                     "")))
@@ -1584,7 +1585,7 @@ textual parts.")
       (gnus-fetch-headers
        (and (car result) (delete 0 (mapcar #'string-to-number
                                            (cdr (assoc "SEARCH" (cdr result))))))
-       nil t))))
+       nil t)))))
 
 (defun nnimap-possibly-change-group (group server)
   (let ((open-result t))