1 files changed, 8 insertions, 3 deletions

diff --git a/lisp/net/tramp-cache.el b/lisp/net/tramp-cache.el
index 03a5fe5b88e..d222dd1011d 100644
--- a/lisp/net/tramp-cache.el
+++ b/lisp/net/tramp-cache.el
@@ -243,7 +243,7 @@ PROPERTY is set persistent when KEY is a vector."
     (aset key 3 nil))
   (let ((hash (or (gethash key tramp-cache-data)
                   (puthash key (make-hash-table :test 'equal)
-                            tramp-cache-data))))
+                           tramp-cache-data))))
     (puthash property value hash)
     (setq tramp-cache-data-changed t)
     (tramp-message key 7 "%s %s" property value)
@@ -329,10 +329,15 @@ KEY identifies the connection, it is either a process or a vector."
                tramp-cache-data-changed
                (stringp tramp-persistency-file-name))
       (let ((cache (copy-hash-table tramp-cache-data)))
-        ;; Remove temporary data.
+        ;; Remove temporary data.  If there is the key "login-as", we
+        ;; don't save either, because all other properties might
+        ;; depend on the login name, and we want to give the
+        ;; possibility to use another login name later on.
         (maphash
          (lambda (key value)
-           (if (and (vectorp key) (not (tramp-file-name-localname key)))
+           (if (and (vectorp key)
+                    (not (tramp-file-name-localname key))
+                    (not (gethash "login-as" value)))
                (progn
                  (remhash "process-name" value)
                  (remhash "process-buffer" value)