Boone Gorges 499d1b74ba Don't cache WP_Term objects in wp_get_object_cache(). ...

The data stored in the cache should be raw database query results, not
`WP_Term` objects (which may be modified by plugins, and may contain additional
properties that shouldn't be cached).

If term relationships caches were handled in `wp_get_object_terms()` - where
a database query takes place - it would be straightforward to cache raw data.
See #34239. Since, in fact, `get_the_terms()` caches the value it gets from
`wp_get_object_terms()`, we need a technique that allows us to get raw data
from a `WP_Term` object. Mirroring `WP_User`, we introduce a `data` property
on term objects, which `get_the_terms()` uses to fetch cacheable term info.

Fixes #34262.
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git-svn-id: http://core.svn.wordpress.org/trunk@34997 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2015-10-12 15:13:48 +00:00

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