Boone Gorges 812060f940 Improve handling for WP_Error objects in get_the_terms(). ...

`wp_get_object_terms()` can return a `WP_Error` object. As such, the
`get_the_terms()` cache wrapper should handle them properly. To wit:

* Don't try to map an error object to `get_term()`. Introduced in [35032].
* Don't cache an error object as taxonomy relationships. Introduced in at least [16487], maybe earlier.

Props stephenharris.
Fixes #34723.
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git-svn-id: http://core.svn.wordpress.org/trunk@35814 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2015-12-10 03:35:27 +00:00

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