[wp-trac] [WordPress Trac] #43399: Non-admin roles get error 500 when creating new post

[WordPress Trac]

#43399: Non-admin roles get error 500 when creating new post
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 Reporter:  ninke              |      Owner:
     Type:  defect (bug)       |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  Posts, Post Types  |    Version:  4.9.4
 Severity:  normal             |   Keywords:
  Focuses:  accessibility      |
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 I didn't notice this issue until my client pointed this out to me when she
 couldn't create new posts.

 I have an admin account and can create posts, but when she creates a new
 post or goes to /wp-admin/post-new.php she gets a white screen. To be
 clear: the ditor doesn't show up. this is before even saving anything.

 When investigating this I found out that admin accounts do not have this
 problem, but her account, an editor role, does. I also created a new
 editor account, to see if it was perhaps something only related to her
 specific account, but the results were the same, no creation possible.
 internal server error 500

 I fiddled around with post-new.php for a bit and commenting line 70 ($post
 = get_default_post_to_edit( $post_type, true );) allows her account to see
 and be able to create a new post again. I put it back as it was, because
 I'm sure it serves its purpose, but perhaps this tidbit of info will help
 others to find out what's going on here.

 I have used health check and the core files seem to be the same as
 provided by wordpress.org

 I haven't found any similar tickets, but if there are please direct me to
 them!

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Ticket URL: <https://core.trac.wordpress.org/ticket/43399>
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