[wp-trac] [WordPress Trac] #42072: Add limit 1 to domain_exists

[WordPress Trac]

#42072: Add limit 1 to domain_exists
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 Reporter:  spacedmonkey        |      Owner:
     Type:  enhancement         |     Status:  new
 Priority:  normal              |  Milestone:  Awaiting Review
Component:  Networks and Sites  |    Version:  4.6
 Severity:  normal              |   Keywords:
  Focuses:  multisite           |
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 `domain_exists` uses to `get_sites` to looks if site exists. But it only
 uses the first result. The param limit should be added to get_sites,
 limiting the query.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42072>
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