Error when loading Mouf if cookie contains array

[Zheness]

Hello Mouf team !

I have an issue when loading Mouf home page:

Warning: urlencode() expects parameter 1 to be string, array given in /var/www/html/vendor/mouf/mouf/src/Mouf/Reflection/MoufReflectionProxy.php on line 297

I found out it's because one of my $_COOKIE is an array:

key = webform-941[1563959232]
value = 1563959232

(Coming from Drupal when saving a form)

When it arrive into PHP, the $value is:

{"1563959232":"1563959232"}

So considered as array.

Is it possible to fix ?

Thank you :)

mouf/src/Mouf/Reflection/MoufReflectionProxy.php

Line 297 in b6a11bf

$cookieArr[] = $key."=".urlencode($value);