[wp-trac] [WordPress Trac] #55307: After upgrading Debian, WordPress sites no longer update through FTP

[WordPress Trac]

#55307: After upgrading Debian, WordPress sites no longer update through FTP
-----------------------------+------------------------------
 Reporter:  zippy1970        |       Owner:  (none)
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Upgrade/Install  |     Version:  trunk
 Severity:  major            |  Resolution:
 Keywords:  needs-testing    |     Focuses:
-----------------------------+------------------------------

Comment (by costdev):

 In
 `WP_Filesystem_FTPext::exists()`[https://developer.wordpress.org/reference/classes/wp_filesystem_ftpext/exists/
 Docs], it calls `$list = ftp_nlist( $this->link, $file )`, which returns
 `false`.

 The result is checked against `empty( $list ) && $this->is_dir( $file )`,
 which passes the first condition and fails the second.

 Then the `WP_Filesystem_FTPext::exists()` returns `! empty( $list );`.

 `! false` === `true` === the file exists, so this shouldn't be causing the
 problem here.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/55307#comment:11>
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