[wp-trac] [WordPress Trac] #36712: Paragraph tags removed from div elements if script tag is present

[WordPress Trac]

#36712: Paragraph tags removed from div elements if script tag is present
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 Reporter:  dankop        |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Formatting    |    Version:  4.5.1
 Severity:  normal        |   Keywords:
  Focuses:                |
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 I honestly have no idea how to summarize this bug (therefore my lousy
 title), so I'll best skip right to how to reproduce it.

 - Get 10 paragraphs of text from Lorem Ipsum, and paste it to your visual
 editor.
 - Switch to the text editor and wrap the first 5 paragraphs in a div, and
 wrap the last 5 in a second div.
 - After the first paragraph in each div, simply write <script></script>
 - Switch between Visual and Text editor, and watch the paragraphs in the
 second div disappear.

 For you convenience, you can copy the template from here, instead of
 typing it manually: http://pastebin.com/PFYj885M

 If the paragraphs don't disappear after the first switch from text to
 visual, do it a couple of more times. I tried it on a fresh new install
 using the Twenty Sixteen theme.

 I encountered this bug while having a couple of Instagram embeds on the
 same page, all of which loaded a script.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36712>
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