Variable: imenu-auto-rescan
imenu-auto-rescan is a customizable variable defined in imenu.el.gz.
Value
nil
Documentation
Non-nil means Imenu should always rescan the buffers.
Source Code
;; Defined in /usr/src/emacs/lisp/imenu.el.gz
(defcustom imenu-auto-rescan nil
"Non-nil means Imenu should always rescan the buffers."
:type 'boolean)