[wp-trac] [WordPress Trac] #44171: Flushing the rewrite rules is "wrong" on the front-end

[WordPress Trac]

#44171: Flushing the rewrite rules is "wrong" on the front-end
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 Reporter:  azaozz       |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  5.0
Component:  General      |    Version:
 Severity:  normal       |   Keywords:
  Focuses:               |
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 Follow-up from #44142.

 "Flushing" these rules takes a lot of resources, writes to the db, and
 (usually) overwrites .htaccess. Because of that it should only be
 performed in wp-admin, especially in production. Add a `_doing_it_wrong()`
 notice so theme and plugin authors are aware if this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44171>
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