[wp-meta] [Making WordPress.org] #5016: Switching Text/Visual modes for Explanation posts javascript exception (regexp)

[Making WordPress.org]

#5016: Switching Text/Visual modes for Explanation posts javascript exception
(regexp)
---------------------------+--------------------
 Reporter:  valentinbora   |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  normal         |  Milestone:
Component:  Developer Hub  |   Keywords:
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 Context: https://developer.wordpress.org/
 User agent: `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2)
 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36`

 What's broken? Cannot switch to Visual mode at all at this time.

 {{{
 editor.min.js?ver=5.4-alpha-47202:2 Uncaught TypeError: Cannot read
 property 'regexp' of undefined
     at editor.min.js?ver=5.4-alpha-47202:2
     at g (editor.min.js?ver=5.4-alpha-47202:2)
     at n.cursorStart (editor.min.js?ver=5.4-alpha-47202:2)
     at editor.min.js?ver=5.4-alpha-47202:2
     at r (editor.min.js?ver=5.4-alpha-47202:2)
     at HTMLDocument.<anonymous> (editor.min.js?ver=5.4-alpha-47202:2)
     at C (tinymce.min.js?ver=4960-20190918:2)
     at HTMLDocument.d (tinymce.min.js?ver=4960-20190918:2)
 }}}

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Ticket URL: <https://meta.trac.wordpress.org/ticket/5016>
Making WordPress.org <https://meta.trac.wordpress.org/>
Making WordPress.org