[wp-trac] [WordPress Trac] #39250: Undefinded Variable in Media-Modal

[WordPress Trac]

#39250: Undefinded Variable in Media-Modal
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 Reporter:  arkonisus     |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Media         |     Version:  4.7
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  ui
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Comment (by arkonisus):

 Sorry, it is a little bit strange ... I installed a blank WP and yes, it
 is all fine - no error! So i deleted all the plugins and theme data, posts
 and media in the faulty installation but the error was still present. OK,
 my last attempt was to reset the whole database ... and now all runs fine!
 It seems the reason was a buggy option in my database. But:

 During my certain attempts i found out that it shows the default PDF-
 thumbnail in the media-modal and so i got the error. In the 'normal'
 media-view (upload.php) the thumbnail was correctly rendered and there was
 also no error message.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39250#comment:2>
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