[wp-trac] [WordPress Trac] #44820: CodeMirror in Customize - copy & paste bug

[WordPress Trac]

#44820: CodeMirror in Customize - copy & paste bug
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 Reporter:  dionysous                       |      Owner:  (none)
     Type:  defect (bug)                    |     Status:  new
 Priority:  normal                          |  Milestone:  Awaiting Review
Component:  Customize                       |    Version:  4.9.8
 Severity:  minor                           |   Keywords:
  Focuses:  ui, javascript, administration  |
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 Wrong behavior in CodeMirror:
 I go to **Customize > Additional CSS** and copy one selector including the
 opening curly bracket "{". I paste the copied text at the end of the
 content of the CSS textarea and press enter to create a new line. The new
 line won't be created, instead Autocompletion of CodeMirror is executed
 and the CSS attribute **''align-content''** is added.

 Animated screen capture as GIF:
 [https://hipp.design/media/code-mirror-copy-paste.gif]

 It only happens, when the selector is pasted at the end (of the textarea)
 and if the CSS field was already filled out and the Customize have been
 saved before.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44820>
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