[wp-trac] [WordPress Trac] #30261: Split all existing shared taxonomy terms on WP upgrade

[WordPress Trac]

#30261: Split all existing shared taxonomy terms on WP upgrade
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 Reporter:  boonebgorges             |       Owner:  boonebgorges
     Type:  enhancement              |      Status:  reopened
 Priority:  high                     |   Milestone:  4.3
Component:  Taxonomy                 |     Version:
 Severity:  blocker                  |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:
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Comment (by Chouby):

 I tested 30261.14.diff​ and what happens is very strange. Sometimes
 (rarely) it works exactly as expected, and most often it doesn't.

 When it doesn't work 'split_shared_term_batch' seems to be correctly
 scheduled and but is removed from the cron table just after (thus the
 terms are never split).
 I logged the tables saved by `_set_cron_array during` the upgrade, and
 noticed that:
 * one call adds 'split_shared_term_batch'
 * the next call removes it but has *two* 'wp_version_check' events (both
 separated by one day)

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Ticket URL: <https://core.trac.wordpress.org/ticket/30261#comment:60>
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