[wp-trac] [WordPress Trac] #54544: fatal error when entering the site editor after updating to 5.9-beta1

[WordPress Trac]

#54544: fatal error when entering the site editor after updating to 5.9-beta1
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 Reporter:  pbiron             |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  5.9
Component:  Editor             |     Version:  trunk
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by pbiron):

 Replying to [comment:4 costdev]:
 > Hi @pbiron, I can't seem to reproduce this.

 As mentioned in the ticket description, I can't replicate the problem on
 any of the local sites I've updated...just on that one remote site
 (details below).

 > Can you provide these environment details?
 >
 - WordPress version (before updating): 5.8.2
 - OS: Linux (shared hosting environment, so probably some flavor of
 cloudlinux)
 - PHP:  7.3.33
 - Database: MySQL 5.7.36
 - Browser: Firefox 94.0.2 (64-bit)

 I've rolled the affected back to to 5.8.2 and then did the update again
 (via Beta Tester, a few times) with the same results.  I'll see if I can
 put some time aside to do the update on a one or 2 other cPanel-managed
 sites I have access to (not sure when I'll be able to do that, tho).

 > @pbiron, can you let us know if you had previously installed Twenty
 Twenty Two from
 > https://github.com/WordPress/twentytwentytwo/tags or if it was only
 installed with 5.9.0 Beta 1?

 Installed as part of the beta1 update.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54544#comment:11>
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