By specifying the "true" parameter, according to the jQuery documentation:
api.jquery.com/jquery.noConflict/
..
A Boolean indicating whether to remove all jQuery variables from the global scope (including jQuery itself).
This is bad practice and it's a bug that should be fixed in.

/libraries/astroid/framework/library/astroid/Component/Includer.php

And this is the line that in my opinion needs to be removed:
$content .= '<script>jQuery.noConflict(true);</script>';
..
Maybe add an option in the PLugin to switch it on or off!
..
Greating Peter