[Bug]: not able to set language on signup page

[Jimmi08]

What e107 version are you using?

v2.3.3

Bug description

With language selector path is
signup.php?elan=en

this ends in empty page (not blank, just no form) because this test in signup.php

if(e_QUERY && e_QUERY != 'stage1')

How to reproduce

Go to any site with multilan e107 and put this URL directly in browser

Expected behavior

Either this parameter is ignored or redirected back to signup.php

What browser(s) are you seeing the problem on?

Chrome / Brave

PHP Version

8.1

[Jimmi08]

Solved this way in signup.php

if (substr(e_QUERY, 0, 4) == "elan")
{
 
	e107::redirect(e_SIGNUP);
	exit();
}