[wp-trac] [WordPress Trac] #39531: Twenty Fourteen, Fifteen, Seventeen: allow category display in post preview even when only 1 category

[WordPress Trac]

#39531: Twenty Fourteen, Fifteen, Seventeen: allow category display in post preview
even when only 1 category
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 Reporter:  lancewillett   |       Owner:
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  4.8
Component:  Bundled Theme  |     Version:
 Severity:  normal         |  Resolution:
 Keywords:  has-patch      |     Focuses:
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Comment (by davidakennedy):

 Great find @lancewillett! I tested and can confirm the bug. I also tested
 the patch and it works well. I think this one should be good to go.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39531#comment:6>
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