[wp-trac] [WordPress Trac] #42563: Flushing rewrite rules on plugin deactivation does nothing

[WordPress Trac]

#42563: Flushing rewrite rules on plugin deactivation does nothing
---------------------------+-----------------------------
 Reporter:  brainfork      |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Rewrite Rules  |    Version:  4.8.3
 Severity:  normal         |   Keywords:
  Focuses:                 |
---------------------------+-----------------------------
 Attempting to flush custom rewrite rules added via plugin on same plugin
 deactivation as described in the codex/code reference using the following:
 {{{
 register_deactivation_hook( __FILE__, 'flush_rewrite_rules' );
 }}}

 '''Expected result:'''
 Custom rewrite rules are removed when plugin is deactivated.

 '''Actual result:'''
 Custom rewrite rules persist, can only be cleared by manually triggering a
 flush

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Ticket URL: <https://core.trac.wordpress.org/ticket/42563>
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