Customize bug in supercite

Noticed the following bug in trying to use customize to set up sc-attrib-selection-list. The type doesn't seem to match the documentation: (defcustom sc-attrib-selection-list nil "*An alist for selecting preferred attribution based on mail headers. Each element of this list has the following form: (INFOKEY ((REGEXP . ATTRIBUTION) (REGEXP . ATTRIBUTION) (...))) [snip] to be consulted during attribution selection." :type '(repeat (list symbol (repeat (cons regexp (choice (repeat (repeat sexp)) symbol))))) [snip] INFOKEY is supposed to be a string, and the ATTRIBUTION can be a string or a list. Does SYMBOL mean that symbols and strings are allowed? If so, how do I get a string in? Putting the string without quotes gives me a symbol. Putting quotes gives me a symbol whose name has quotes in it. Unfortunately I don't know how to change the :type parameter to do the right thing. Of course, I don't have to use customize, but this seems to be the right way to do things these days. Also, I notice that the nice little widgets for [Open], [Set], [Save], etc are gone. I get just the text. Is this correct? Ray