[wp-trac] [WordPress Trac] #32224: delete_post_meta() not working as expected when $meta_value is specified as 0 or '0'

[WordPress Trac]

#32224: delete_post_meta() not working as expected when $meta_value is specified as
0 or '0'
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 Reporter:  husobj              |       Owner:  boonebgorges
     Type:  defect (bug)        |      Status:  reviewing
 Priority:  normal              |   Milestone:  4.3
Component:  Options, Meta APIs  |     Version:  4.2.1
 Severity:  normal              |  Resolution:
 Keywords:                      |     Focuses:
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Comment (by boonebgorges):

 Yeah, you're right about the wrappers. How about changing the default
 value of `$meta_value` to null for `delete_metadata()` and all wrappers,
 and then skipping the value clause when `is_null( $_meta_value )`?

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Ticket URL: <https://core.trac.wordpress.org/ticket/32224#comment:6>
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