(comint-filter): Increment opoint only if after insertion point.

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/comint.el b/lisp/comint.el
index 5c0d27ccb89..0d49cba5590 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -662,7 +662,8 @@ Similarly for Soar, Scheme, etc."
           (nchars (length string)))
       (widen)
       (goto-char (process-mark process))
-      (setq opoint (+ opoint nchars))
+      (if (<= (point) opoint)
+          (setq opoint (+ opoint nchars)))
       ;; Insert after old_begv, but before old_zv.
       (if (< (point) obeg)
           (setq obeg (+ obeg nchars)))