[wp-trac] [WordPress Trac] #59723: Pattern file containing PHP constant from theme causes fatal error on update to WordPress 6.4

[WordPress Trac]

#59723: Pattern file containing PHP constant from theme causes fatal error on
update to WordPress 6.4
-----------------------------+------------------------------
 Reporter:  fabiankaegy      |       Owner:  joemcgill
     Type:  defect (bug)     |      Status:  reviewing
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Upgrade/Install  |     Version:  trunk
 Severity:  normal           |  Resolution:
 Keywords:                   |     Focuses:
-----------------------------+------------------------------
Changes (by rajinsharwar):

 * priority:  high => normal
 * milestone:  6.4 => Awaiting Review


Comment:

 I can replicate the error. If we use the theme shared, we get the below
 error.

 PHP Fatal error:  Uncaught Error: Undefined constant "NAMESPACE_IMAGE_URL"
 in ..\public\wp-content\themes\wp-core-59723-sample-theme-
 main\patterns\sample.php:9

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Ticket URL: <https://core.trac.wordpress.org/ticket/59723#comment:4>
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