couchdb gives HTTP 500, when oauth token secret is unknown

Searchable exception text:

[Thu, 08 Oct 2009 14:44:19 GMT] [info] [<0.1103.24>] Stacktrace: [{oauth_uri,encode,[undefined,[]]},
             {oauth_uri,'-calate/2-lc$^0/1-0-',1},
             {oauth_uri,'-calate/2-lc$^0/1-0-',1},
             {oauth_uri,calate,2},
             {oauth_hmac_sha1,signature,3},
             {oauth_hmac_sha1,verify,4},
             {couch_httpd_oauth,'-oauth_authentication_handler/1-fun-0-',6},
             {couch_httpd,authenticate_request,2}]

Also an auth-related HTTP 500, but perhaps not for unknwon OAuth token:

ServerError: (500, ('unknown_error', 'badarg'))

Badarg error in HTTP request

Stacktrace:
[{erlang,list_to_binary,[undefined]},
             {couch_httpd_oauth,set_user_ctx,2},
             {couch_httpd,authenticate_request,2},
             {couch_httpd,handle_request,5},
             {mochiweb_http,headers,5},
             {proc_lib,init_p_do_apply,3}]

httpd 500 error response:
 {darg error in HTTP request"error":"unknown_error","reason":"badarg"}

Further note: Failures in reading the INI *should* be a 500 error, after they stop storing users in INI files. Once users are written to a more sane place (like, say, a database?!), this goes away.