From the NannyMUD documentation

LAST CHANGE

2000-12-08

COMMAND

NAME
        redo - Update, load and re-clone an object.


LOCATION
        Wizmod, module 'default'.

SYNTAX
        redo [-afln] [obj]

DESCRIPTION
        This command updates, loads and reclones an object.

        If no object is specified, your environment will be assumed.
        
        Flags:
        -a      Refresh everything in the objects inherit list.
        -f      Force the master object to be updated.
        -l      Load the object if it isn't already loaded. Beware, since
                you in this case most certainly is giving a file, kindly
                give the filename, including the extension '.c', or you
                might 'redo' some object out there in the MUD. The wizmod
                does not guess, nor is it an AI.
        -n      Don't use catch() on the loading. This gives better error
                messages when errors occurs.


NOTE
        If you use this command on a room which loads things using add_object,
        you'll get two clones of those things next reset. Solution: Before you
        'redo' the room, use undo, bomb, destruct or some similar command to
        make sure the room is empty before you redo it.


SEE ALSO
        refresh in std/module/default/refresh


SEE ALSO
        Undo in std/module/default/Undo