[wp-trac] [WordPress Trac] #25429: `get_the_category_by_ID` triggers PHP notice on non-existent category

[WordPress Trac]

#25429: `get_the_category_by_ID` triggers PHP notice on non-existent category
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 Reporter:  ericmann               |       Owner:
     Type:  defect (bug)           |      Status:  new
 Priority:  normal                 |   Milestone:  Awaiting Review
Component:  Taxonomy               |     Version:  2.3
 Severity:  normal                 |  Resolution:
 Keywords:  has-patch 2nd-opinion  |
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Comment (by SergeyBiryukov):

 [attachment:25429.4.diff] fixes the notice and clarifies the return value
 for `get_category()` and `get_tag()`.

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Ticket URL: <http://core.trac.wordpress.org/ticket/25429#comment:6>
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