Using "View result counter" as the "Thumbnail field" Outputs incorrectly.

Note: this worked previously but it seems to have broken in the latest version of Views 6.x-2.7

If I may be so bold. I believe it has to do with how views is now rendering the output of the counter.
From views/handlers/views_handler_field_counter.inc:

<?php
function render($values) {
    // Note:  1 is subtracted from the counter start value below because the
    // counter value is incremented by 1 at the end of this function.
    $count = is_numeric($this->options['counter_start']) ? $this->options['counter_start'] - 1 : 0;
    $pager = $this->view->pager;
    // Get the base count of the pager.
    if ($pager['use_pager']) {
      $count += ($pager['items_per_page'] * $pager['current_page']) + $pager['offset'];
    }
    // Add the counter for the current site.
    $count += $this->view->row_index + 1;

    return $count;
  }
?>