Custom Fields Not Available in Quote Web Template

Support
3

I cannot reproduce this problem.
Adding

<?php
echo '<pre>';
var_dump($custom_fields);
echo '</pre>';
?>

prints out

array (size=3)
  'invoice' => 
    array (size=3)
      'Sent on' => string '2018-04-26' (length=10)
      'Test Custom Field 2' => null
      'Test Single Choice' => string '' (length=0)
  'client' => 
    array (size=0)
      empty
  'user' => 
    array (size=0)
      empty

which is correct for my testing setup.

Please verify that the contents of your file application/modules/guest/controllers/View.php matches this file.