Jeremy Felt f3c2c7350c Site Icon: Wrap site icon retrieval with switch_to_blog() as needed. ...

When the site icon for another site is requested, retrieving its ID via `get_blog_option()` is not enough. `switch_to_blog()` is used to set proper context when required.

Adds multsite tests for `has_site_icon()`.

Props imath.
Fixes #34312.

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git-svn-id: http://core.svn.wordpress.org/trunk@35536 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2015-11-08 02:04:27 +00:00

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