barmar@THINK.COM (12/04/89)
In GNU Emacs 18.52.25... Setting some key bindings in inferior-lisp-mode-map causes those same keys to be bound in shell-mode-map. It happens whenever you rebind a multi-key sequence whose default value is copied from Shell mode (e.g. c-c c-z). The cause is that inferior-lisp-mode-map is initialized to be (copy-alist shell-mode-map). This only copies two levels of the tree structure of the sparse keymap. The second-level alists, which are used for dispatching after a prefix key, are shared by both keymaps. When rebinding a key that is already bound in the keymap the shared cons is RPLACDed, affecting both keymaps. Instead of using copy-alist, it should be using copy-keymap, so that all levels of the keymap are copied. barmar