BUG: Permalink rewrite rule wrong

Hi All
There seems to be a bug in the rewrite rules genrated by default install of mingus release. For the individual post with the setting of
/archives/%year%/%monthnum%/%day%/%post_id%
It spits out
RewriteRule ^archives/([0-9]{4})?/?([0-9]{1,2})?/?([0-9]{1,2})?/?([0-9]+)?([0-9]+)?/?$ /haanbhai/index.php?year=$1&monthnum=$2&day=$3&p=$4&page=$5 [QSA]
while it should be
RewriteRule ^archives/([0-9]{4})?/?([0-9]{1,2})?/?([0-9]{1,2})?/?([0-9]+)?/?([0-9]+)?/?$ /haanbhai/index.php?year=$1&monthnum=$2&day=$3&p=$4&page=$5 [QSA]
in summary /?([0-9]+)?([0-9]+)?/ part at the end is wrong it should be /?([0-9]+)?/?([0-9]+)?/
Gave me a lot of heartburns.
Regards
Pankaj