Scott Taylor 175d476b0e Canonical/Rewrite: sanity check posts that are paged with <!--nextpage-->. Page numbers past the max number of pages are returning the last page of content and causing infinite duplicate content. ...

Awesome rewrite bug: the `page` query var was being set to `'/4'` in `$wp`. When cast to `int`, it returns `0` (Bless you, PHP). `WP_Query` calls `trim( $page, '/' )` when setting its own query var. The few places that were checking `page`	before posts were queried now have sanity checks, so that these changes work without flushing rewrites.	

Adds/updates unit tests.

Props wonderboymusic, dd32.
See #11694.

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git-svn-id: http://core.svn.wordpress.org/trunk@34456 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2015-09-24 14:04:24 +00:00

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