[wp-trac] [WordPress Trac] #44322: When editing a file after updating to wordpress 4.9 or higher, the error message is exposed and can not be edited

[WordPress Trac]

#44322: When editing a file after updating to wordpress 4.9 or higher, the error
message is exposed and can not be edited
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 Reporter:  kimsijin      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Editor        |     Version:  4.9
 Severity:  critical      |  Resolution:
 Keywords:                |     Focuses:
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Changes (by kimsijin):

 * Attachment "health_check.png" added.

 health_check

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Ticket URL: <https://core.trac.wordpress.org/ticket/44322>
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