[wp-trac] [WordPress Trac] #32481: Pass the original `$user_id` to the filter in `get_the_author_meta()`

[WordPress Trac]

#32481: Pass the original `$user_id` to the filter in `get_the_author_meta()`
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 Reporter:  dlh                 |      Owner:
     Type:  enhancement         |     Status:  new
 Priority:  normal              |  Milestone:  Awaiting Review
Component:  Options, Meta APIs  |    Version:
 Severity:  normal              |   Keywords:
  Focuses:                      |
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 The `"get_the_author_$field"` filter includes `$user_id`, but there's no
 way to know whether that `$user_id` was provided to
 `get_the_author_meta()` or inferred from the current post.

 So, I couldn't add a filter that acted only when I was sure
 `get_the_author_meta()` was called to get meta about the current post
 author, as opposed to a specific user (or vice versa).

 The attached patch would add a parameter to the filter with the original
 `$user_id` value.

 (The `"the_author_$field"` filter already provides this information
 because `the_author_meta()` passes the `$user_id` it receives straight to
 the filter.)

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Ticket URL: <https://core.trac.wordpress.org/ticket/32481>
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