[wp-trac] [WordPress Trac] #52887: Docs: Clarify why register_meta is necessary

[WordPress Trac]

#52887: Docs: Clarify why register_meta is necessary
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 Reporter:  ribaricplusplus  |      Owner:  (none)
     Type:  enhancement      |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  General          |    Version:
 Severity:  minor            |   Keywords:
  Focuses:  docs             |
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 When I was reading register_meta documentation I was confused why
 register_meta is necessary and where it is used, so I added some
 clarification.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52887>
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