[wp-trac] [WordPress Trac] #33482: Filter "comment_form_default_fields" removes all fields except textarea for comment

[WordPress Trac]

#33482: Filter "comment_form_default_fields" removes all fields except textarea for
comment
--------------------------+-----------------------------
 Reporter:  bhdzllr       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Comments      |    Version:  4.3
 Severity:  normal        |   Keywords:
  Focuses:  ui, template  |
--------------------------+-----------------------------
 When trying to use the filter "comment_form_default_fields" just the
 textarea for the comment is displayed. Other fields (Name, E-Mail, etc.)
 disappear.
 Tried with own template and also with the following snippet in "Twenty
 Fifteen". Works before updating to WordPress 4.3. Maybe it has something
 to do with #30157?

 {{{
 function my_comment_form() {
         // Code
 }

 add_filter( 'comment_form_default_fields', 'my_comment_form' );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/33482>
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