[wp-trac] [WordPress Trac] #15256: ?cat=## permalinks do not redirect when category is a parent

[WordPress Trac]

#15256: ?cat=## permalinks do not redirect when category is a parent
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 Reporter:  froman118     |       Owner:
     Type:  defect (bug)  |      Status:  reopened
 Priority:  high          |   Milestone:  3.3
Component:  Canonical     |     Version:  3.0.1
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |
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Comment (by minaguib):

 Hi folks

 Ran into this on the latest release (version 3.2.1)

 The bug is actually not just cosmetic, and in my case it causes serious
 breakage.

 The breakage occurs if, like in my case, posts have a custom permalink
 structure.  In my case I use "/places/%postname%"

 When that's the case, and there are more than N posts in the category
 index requiring pagination, the breakage is as follows:

 1. User chooses one of the affected categories, goes to URL /?cat=5 and
 does not get redirected to slug
 2. User scrolls past N entries, uses pagination to click on page 2
 3. User goes to URL: /page/2?cat=5
 4. Which is a broken/invalid URL.  Instead of seeing the listing for page
 2, they see the homepage

 It'd be great if this can be fixed in the next release.  All my current
 options suck (disabling pagination / making the entries-per-page a large
 number / removing child categories / disabling pretty permalinks and using
 the default /?p=X ).

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Ticket URL: <http://core.trac.wordpress.org/ticket/15256#comment:7>
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