Description:
------------
Using \http\Url() to construct a URL from fragments leaks memory if the constructed url gets too big.
In the attached test example the query part of the url will disappear and replaced with random memory data.
It appears that it's not only happening when query string gets too long, but rather when the total url length exceeds a certain limit.

Test script:
---------------
<?php
// leak.php
// https://gist.github.com/ankr/a5645212e8e1dc9979ef

$url = 'http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaa';   // This length will work as expected
$url = 'http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaaa';  // This length will cause Url() to ignore the 'query' part
$url = 'http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaaaa'; // This length will cause Url() to leak

$parsed = parse_url($url);
$parsed['query'] = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';

var_dump((new \http\Url($parsed))->toString());

Actual result:
--------------
$ php leak.php
string(47) "http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaaaa?H@��V"

$ php leak.php
string(47) "http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaaaa?H��}?"

$ php leak.php
string(47) "http://aaaaaaaaaaaaaaaaaaaa.aaa/aaaaaaaa?H���G"

etc.