[wp-trac] [WordPress Trac] #15458: Lazy-load usermeta into the user object

[WordPress Trac]

#15458: Lazy-load usermeta into the user object
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 Reporter:  nacin                    |       Owner:
     Type:  enhancement              |      Status:  new
 Priority:  normal                   |   Milestone:  3.3
Component:  Performance              |     Version:
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |
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Comment (by ryan):

 {{{
 $this->caps = &$this->data->{$this->cap_key};
 }}}

 That line in WP_User::_init_caps() is somehow causing cache pollution.
 wp_cache_get($id, 'users'), as done in get_userdata(), will sometimes
 return an object with the wp_xxx_capabilities property set ( where xxx is
 the current blog id).  The value is an empty array.  This confuses
 get_blogs_of_user(), which sees that the property is set and mistakenly
 thinks the user belong to the current blog.  Since the cache clones
 objects on set and get this is rather unexpected.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15458#comment:42>
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