[wp-trac] [WordPress Trac] #56992: The Loop displays incorrect data for queries started with `fields => 'id=>parent'`.

[WordPress Trac]

#56992: The Loop displays incorrect data for queries started with `fields =>
'id=>parent'`.
--------------------------------------+----------------------------
 Reporter:  peterwilsoncc             |       Owner:  peterwilsoncc
     Type:  defect (bug)              |      Status:  closed
 Priority:  normal                    |   Milestone:  6.8
Component:  Query                     |     Version:  3.1
 Severity:  normal                    |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
--------------------------------------+----------------------------
Changes (by peterwilsoncc):

 * status:  reopened => closed
 * resolution:   => fixed


Comment:

 In [changeset:"59993" 59993]:
 {{{
 #!CommitTicketReference repository="" revision="59993"
 Query: Fix performance regression starting the loop for `all` fields.

 Fixes a performance regression starting the loop after calling `WP_Query(
 [ 'fields' => 'all' ] )`. This changes how `WP_Query::the_post()`
 determines whether there is a need to traverse the posts for cache
 warming.

 If IDs are queried, `WP_Query::$posts` is assumed to be an array of post
 IDs. If all fields are queried, `WP_Query::$posts` is assumed to be an
 array of fully populated post objects.

 Follow up to [59919], [59937].

 Props joemcgill, peterwilsoncc, SirLouen.
 Fixes #56992.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/56992#comment:53>
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