[wp-trac] [WordPress Trac] #60601: $include should be checked not empty in `comment-template.php`

[WordPress Trac]

#60601: $include should be checked not empty in `comment-template.php`
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 Reporter:  monzuralam    |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Comments      |    Version:  6.4.3
 Severity:  normal        |   Keywords:
  Focuses:                |
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 $include should be checked not empty in if condition `wp-includes/comment-
 template.php` line number 1617.

 I think, here need to check ! empty() and file_exits() both.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60601>
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