[wp-trac] [WordPress Trac] #59847: Since WordPress 6.4, the functions.php of a theme moved to a different location using register_theme_directory is no longer called

[WordPress Trac]

#59847: Since WordPress 6.4, the functions.php of a theme moved to a different
location using register_theme_directory is no longer called
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 Reporter:  partyfrikadelle  |       Owner:  joemcgill
     Type:  defect (bug)     |      Status:  reviewing
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Bootstrap/Load   |     Version:  6.4
 Severity:  critical         |  Resolution:
 Keywords:  has-patch        |     Focuses:  template, performance
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Comment (by joemcgill):

 Thanks @rebasaurus. I'm curious why the previous approach didn't fix your
 issue. However, the best path forward may be to remove the memoization
 entirely, which I think was added as a performance optimization and not
 specifically needed for #18298. I've added a new PR that reverts these
 functions to their previous behavior.

 I'd like to get feedback from @flixos90 or @thekt12 about the potential
 side effects of removing the memoization, since they worked on the
 original ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/59847#comment:26>
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