[wp-trac] [WordPress Trac] #21989: update_option() calls sanitize_option() twice when option does not exist

[WordPress Trac]

#21989: update_option() calls sanitize_option() twice when option does not exist
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 Reporter:  MikeSchinkel                         |       Owner:
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Future
Component:  Options, Meta APIs                   |  Release
 Severity:  normal                               |     Version:  4.9.1
 Keywords:  dev-feedback has-patch needs-        |  Resolution:
  testing needs-refresh                          |     Focuses:
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Changes (by Andy Schmidt):

 * version:   => 4.9.1


Comment:

 Bug still occurs with 4.9.1.

 Spent quite a while trying to figure out why a newly activated plugin,
 which had its settings (in this case a path to external code includes)
 configured for the first time, was complaining that functions from these
 required files had already been declared previously.

 Sorry - it's completely unintuitive for a plug-in developer to have the
 validator be called TWICE, when the Options form was submitted ONCE.

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Ticket URL: <https://core.trac.wordpress.org/ticket/21989#comment:19>
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