[wp-trac] [WordPress Trac] #18408: Can't wp_reset_postdata after custom WP_Query in an admin edit page

[WordPress Trac]

#18408: Can't wp_reset_postdata after custom WP_Query in an admin edit page
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 Reporter:  ericlewis                          |       Owner:  ericlewis
     Type:  defect (bug)                       |      Status:  reopened
 Priority:  normal                             |   Milestone:  Future
                                               |  Release
Component:  Query                              |     Version:  4.7.2
 Severity:  normal                             |  Resolution:
 Keywords:  needs-testing ongoing needs-patch  |     Focuses:
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Comment (by billerickson):

 This issue still exists in WordPress 5.0, with both the Classic Editor and
 Block Editor.

 You can reproduce the issue with this plugin:
 https://gist.github.com/billerickson/21ff280fb26c3b98120044d53f4e1b61

 Classic Editor screenshot: https://cl.ly/e122cffed719
 Block Editor screenshot: https://cl.ly/33bd55ca2869

 This caused issues in Gutenberg blocks as well (see
 https://github.com/WordPress/gutenberg/issues/7468 ), and was temporarily
 fixed using the same approach outlined above - backup the global $post and
 restore it afterwards (see
 https://github.com/WordPress/gutenberg/pull/7889 ).

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Ticket URL: <https://core.trac.wordpress.org/ticket/18408#comment:29>
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