(\d+(?:,\s+\d+)*(?:\,?\s+and\s+\d+)?)}
{$1.(defined $3?$2.bug_links(bug=>$3):'').$4.
english_join([map {bug_links(bug=>$_)} (split /\,?\s+(?:and\s+)?/, $5)])}xeo;
+ $output =~ s{([Aa]dded|[Rr]emoved)( indication that bug )(\d+)( blocks )([\d\s\,]+)}
+ {$1.$2.(bug_links(bug=>$3)).$4.
+ english_join([map {bug_links(bug=>$_)} (split /\,?\s+(?:and\s+)?/, $5)])}eo;
# Add links to reassigned packages
$output =~ s{(Bug reassigned from package \`)([^']+?)((?:'|\&\#39;) to \`)([^']+?)((?:'|\&\#39;))}
{$1.q(<a href=").html_escape(pkg_url(pkg=>$2)).qq(">$2</a>).$3.q(<a href=").html_escape(pkg_url(pkg=>$4)).qq(">$4</a>).$5}eo;