For [GH #184] - show better error diag when POST parameters and QUERY_STRING conflicts

Author: hkoba

Lite/WebMVC0/Connection.pm

@@ -373,7 +373,8 @@ sub convert_array_param_psgi {
       my $qs = $glob->parse_nested_query([$req->query_parameters->flatten]);
       foreach my $key (keys %$qs) {
 	if (exists $body->{$key}) {
-	  die $glob->error("Attempt to overwrite post param '%s' by qs"
+	  die $glob->error("Attempt to overwrite a POST parameter '%s'"
+                           . " by the same one in QUERY_STRING"
 			   , $key);
 	}
 	$body->{$key} = $qs->{$key};

Lite/WebMVC0/SiteApp.pm

@@ -332,11 +332,13 @@ sub call {
 		, path_info => $env->{PATH_INFO}
 		, $self->connection_quad([$virtdir, $loc, $file, $trailer])
 		, $is_index ? (is_index => 1) : ()
-		, is_psgi => 1, cgi => $req);
+		, is_psgi => 1);
 
-  my $con = $self->make_connection(undef, @params, yatt => $dh, noheader => 1);
+  local $CON = my $con = $self->make_connection(undef, @params, yatt => $dh, noheader => 1);
 
   my $error = catch {
+    $CON->configure(cgi => $req);
+
     $self->run_dirhandler($dh, $con, $file);
   };