[wp-trac] [WordPress Trac] #49641: Clarify what happens when meta_value is `''` in get_users like functions.

[WordPress Trac]

#49641: Clarify what happens when meta_value is `''` in get_users like functions.
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 Reporter:  growthwp        |       Owner:  (none)
     Type:  enhancement     |      Status:  new
 Priority:  normal          |   Milestone:  Awaiting Review
Component:  Query           |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  needs-dev-note  |     Focuses:  docs, coding-standards
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Changes (by growthwp):

 * Attachment "poc.php" added.

 PoC

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Ticket URL: <https://core.trac.wordpress.org/ticket/49641>
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