Bug #38123 for URI: URI::QueryParam does not sets param value to empty string

I am using URI version 1.37 and have found some issues. Command perl -e ' use URI; use URI::QueryParam; $u = URI->new("http://site.com/?foo=z&"); $u->query_param(foo => 1); $u->query_param(foo => 'a'); print $u->as_string;' returns, as expected: http://site.com/?foo=a Next test, command perl -e ' use URI; use URI::QueryParam; $u = URI->new("http://site.com/?foo=z&"); $u->query_param(foo => 1); $u->query_param(foo => undef); print $u->as_string;' returns (as expected ?): http://site.com/?foo= But command perl -e ' use URI; use URI::QueryParam; $u = URI->new("http://site.com/?foo=z&"); $u->query_param(foo => 1); $u->query_param(foo => ''); print $u->as_string; ' returns http://site.com/?foo=1 but I suppose it need to be http://site.com/?foo= -- Best regards, Pavel V. Rochnyack mailto:rpv@nikolas.ru