etags.el fix for bug#13412

* lisp/progmodes/etags.el (tags-table-check-computed-list):
Preserve point in tags buffer.

2 files changed, 15 insertions, 6 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c2d869ae827..cd7a013d55c 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2013-01-17  Glenn Morris  <rgm@gnu.org>
+
+        * progmodes/etags.el (tags-table-check-computed-list):
+        Preserve point in tags buffer.  (Bug#13412)
+
 2013-01-16  Glenn Morris  <rgm@gnu.org>
 
         * emacs-lisp/lisp-mode.el (lisp-indent-function): Doc fix.
diff --git a/lisp/progmodes/etags.el b/lisp/progmodes/etags.el
index dc16a2ce762..21844d20598 100644
--- a/lisp/progmodes/etags.el
+++ b/lisp/progmodes/etags.el
@@ -335,12 +335,15 @@ file the tag was in."
                      (save-excursion
                        (tags-verify-table (buffer-file-name table-buffer))))
                 (with-current-buffer table-buffer
-                  (if (tags-included-tables)
-                      ;; Insert the included tables into the list we
-                      ;; are processing.
-                      (setcdr tables (nconc (mapcar 'tags-expand-table-name
-                                                    (tags-included-tables))
-                                            (cdr tables)))))
+                  ;; Needed so long as etags-tags-included-tables
+                  ;; does not save-excursion.
+                  (save-excursion
+                    (if (tags-included-tables)
+                        ;; Insert the included tables into the list we
+                        ;; are processing.
+                        (setcdr tables (nconc (mapcar 'tags-expand-table-name
+                                                      (tags-included-tables))
+                                              (cdr tables))))))
               ;; This table is not in core yet.  Insert a placeholder
               ;; saying we must read it into core to check for included
               ;; tables before searching the next table in the list.
@@ -1547,6 +1550,7 @@ hits the start of file."
                 files)))
     (nreverse files)))
 
+;; FIXME?  Should this save-excursion?
 (defun etags-tags-included-tables () ; Doc string?
   (let ((files nil)
         beg)