[wp-trac] [WordPress Trac] #16567: Can't create single-character categories

[WordPress Trac]

#16567: Can't create single-character categories
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 Reporter:  jeffreymcmanus           |       Owner:
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  General                  |     Version:  3.0.5
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |
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Comment (by garyc40):

 In case someone wonders why "Uncategorized" is output, it's because the
 return value of {{{term_exists()}}} can also be an array if a taxonomy is
 specified (`wp-includes/taxonomy.php:1438`). `wp_terms_checklist()` later
 casts this value as an `int`, making it `1` because it's an array. As a
 result, what you get is whatever category has the ID 1 (in this case,
 Uncategorized).

 By the way, the inline documentation of `term_exists()` states that:

 {{{
 @return mixed Get the term id or Term Object, if exists.
 }}}

 Judging from the code I see, the return value could only be either an
 associative array, or an integer, but never a term object. Or did I miss
 something?

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Ticket URL: <http://core.trac.wordpress.org/ticket/16567#comment:7>
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