[wp-trac] [WordPress Trac] #25267: PHP notices in register_post_type()

[WordPress Trac]

#25267: PHP notices in register_post_type()
--------------------------+-----------------------------
 Reporter:  Looimaster    |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  3.6
 Severity:  normal        |   Keywords:
--------------------------+-----------------------------
 Code: http://pastebin.com/P4Ac7seu

 What I get when entering:
 1) http://localhost/portfolio_category/motion/ - nothing found (content-
 none.php)
 2) http://localhost/portfolio_category/motion/?post_type=portfolio - found
 a few posts but there is also `NOTICE: UNDEFINED PROPERTY:
 STDCLASS::$LABELS IN C:\WAMP\WWW\WP-INCLUDES\GENERAL-TEMPLATE.PHP ON LINE
 700` twice
 3) http://localhost/?portfolio_category=motion&post_type=portfolio - found
 a few posts but there is also `NOTICE: UNDEFINED PROPERTY:
 STDCLASS::$LABELS IN C:\WAMP\WWW\WP-INCLUDES\GENERAL-TEMPLATE.PHP ON LINE
 700` twice
 4) http://localhost/?portfolio_category=motion - nothing found (content-
 none.php)
 5) http://localhost/portfolio-items/ - works fine

 Besides PHP notice I can't access single `portfolio_category` archives
 unless I add `?post_type=portfolio` to the URL. Should it be this way?

 Testing on Twenty Thirteen.

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Ticket URL: <http://core.trac.wordpress.org/ticket/25267>
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