Modcluster subsystem has broken :read-resource-description

[domain@localhost:9999 subsystem=modcluster] :read-resource-description
{
"outcome" => "success",
"result" => {
"description" => "The configuration of the modcluster subsystem.",
"head-comment-allowed" => true,
"tail-comment-allowed" => true,
"namespace" => "urn:jboss:domain:modcluster:1.0",
"attributes" => {"mod-cluster-config" => {
"type" => OBJECT,
"description" => "The common modcluster configuration.",
"required" => false,
"access-type" => "read-only",
"storage" => "configuration"
}}
}
}

is not usable at all to use for management operations.
Also attributes of mod-cluster-config should directly live in 'attributes'. There is no point in adding one more level here.