[wp-trac] [WordPress Trac] #41936: get_main_site_id ignores custom values of $current_site->blog_id

[WordPress Trac]

#41936: get_main_site_id ignores custom values of $current_site->blog_id
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 Reporter:  spacedmonkey              |       Owner:  flixos90
     Type:  defect (bug)              |      Status:  assigned
 Priority:  normal                    |   Milestone:  4.9
Component:  Networks and Sites        |     Version:  trunk
 Severity:  normal                    |  Resolution:
 Keywords:  has-unit-tests has-patch  |     Focuses:  multisite,
                                      |  performance
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Comment (by flixos90):

 [attachment:41936.6.diff] adjusts the following:

 * Fixes access of not existing `$network` variable by using `$this`
 instead.
 * Only returns value of pre-filter or property if it is positive.
 * Adjusts documentation of the pre-filter accordingly.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41936#comment:9>
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