[wp-trac] [WordPress Trac] #39824: Gallery doesn't show images being uploaded

[WordPress Trac]

#39824: Gallery doesn't show images being uploaded
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 Reporter:  gonom9        |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Gallery       |    Version:  4.7.2
 Severity:  normal        |   Keywords:
  Focuses:                |
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 When you insert a gallery with images being uploaded in Edit Post page,
 the gallery doesn't show the images.

 '''How to Reproduce'''

 1. Open Edit Post page.
 2. Insert a gallery with one uploaded image.
 3. Select the gallery in tinyMCE then click on Edit.
 4. Upload a big image file and/or slow down the internet to buy time for
 the following actions.
 5. Choose Edit Gallery tab then click on Update Gallery button while the
 big image is uploading.
 6. The gallery shows an empty element instead of the image.
 7. If you edit the gallery and open Edit Gallery tab after the image
 uploaded, you'll see it has gone.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39824>
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