The AuditUndo command was suggested by @maxsoder in two threads about Undo problems today.
AuditUndo appears to be a secret command. It does not autocomplete and is not a suggestion when typing in the command line. It is not found by a search in Help. It does not appear to have been previously mentioned on this forum. The sole reference to AuditUndo I can find is in Rhino - Custom Undo Events which says: “When you are debugging your code, you may find the AuditUndo command useful. This command lists all the undo information saved in Rhino.” I wonder if all of the McNeel user assistance staff is aware of it.
While AuditUndo is not a command that most users would ever need, it could be very useful when trying to understand what is going on with Undo. Perhaps AusitUndo should be included in Help.