Variable: find-file-visit-truename
find-file-visit-truename is a customizable variable defined in
files.el.gz.
Value
nil
Documentation
Non-nil means visiting a file uses its truename as the visited-file name.
That is, the buffer visiting the file has the truename as the
value of buffer-file-name(var)/buffer-file-name(fun). The truename of a file is found by
chasing all links both at the file level and at the levels of the
containing directories.
Probably introduced at or before Emacs version 19.20.
Source Code
;; Defined in /usr/src/emacs/lisp/files.el.gz
(defcustom find-file-visit-truename nil
"Non-nil means visiting a file uses its truename as the visited-file name.
That is, the buffer visiting the file has the truename as the
value of `buffer-file-name'. The truename of a file is found by
chasing all links both at the file level and at the levels of the
containing directories."
:type 'boolean
:group 'find-file)