[Bug]If the parameter appears in the middle, there will be a problem

[hoythan]

$keys = [];
$re = PathToRegexp::convert('/user/:id/avatar', $keys);
PathToRegexp::match($re, '/user/12345/avatar');

At this time, $Keys will be repeated twice

array(2) {
  [0]=>
  array(4) {
    ["name"]=>
    string(6) "id"
    ["delimiter"]=>
    string(1) "/"
    ["optional"]=>
    bool(false)
    ["repeat"]=>
    bool(false)
  }
  [1]=>
  array(4) {
    ["name"]=>
    string(6) "id"
    ["delimiter"]=>
    string(1) "/"
    ["optional"]=>
    bool(false)
    ["repeat"]=>
    bool(false)
  }
}