[wp-trac] [WordPress Trac] #28525: Wordpress (TinyMCE) eats up paragraph tags if you leave the post, then go back to it

[WordPress Trac]

#28525: Wordpress (TinyMCE) eats up paragraph tags if you leave the post, then go
back to it
--------------------------+-----------------------------
 Reporter:  archon810     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  TinyMCE       |    Version:  3.9.1
 Severity:  normal        |   Keywords:
  Focuses:                |
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 On two of my sites (at least using Chrome stable), I've been noticing
 random loss of paragraphs where text separated by just new p tags gets
 merged into a single paragraph. If the separators are images, the
 paragraphs don't get joined, so it's only for text as simple as
 {{{
 <p>a</p>
 <p>b</p>
 }}}

 This makes entire posts unreadable due to them becoming a wall of text.

 To reproduce:
 - load any post with multiple consecutive paragraphs.
 - leave the page by going to another site, for example press View post.
 - press Back in your browser and observe the paragraphs merged after
 TinyMCE loads. Sometimes you may need to leave the page twice, but for the
 most part, once is enough, in my testing.

 I've tried on two different sites, one that disables autop and one that
 doesn't, and both are affected.

 This is a pretty serious issue because it's destructive, so I'm inclined
 to give it a high priority, if I could.

 I'm going to attach several images comparing before and after.

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Ticket URL: <https://core.trac.wordpress.org/ticket/28525>
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