[wp-trac] [WordPress Trac] #40519: Document that get_metadata() returns false for bad parameters

[WordPress Trac]

#40519: Document that get_metadata() returns false for bad parameters
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 Reporter:  salcode      |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  General      |     Version:  trunk
 Severity:  normal       |  Resolution:
 Keywords:  has-patch    |     Focuses:  docs
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Changes (by salcode):

 * keywords:   => has-patch


Comment:

 Here is the [GitHub branch](https://github.com/salcode/wordpress-
 develop/tree/sf/get-metadata-doc-40519) where I've made this change.

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Ticket URL: <https://core.trac.wordpress.org/ticket/40519#comment:1>
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