[wp-trac] [WordPress Trac] #52524: Add extra context to the `xmlrpc_call` action

[WordPress Trac]

#52524: Add extra context to the `xmlrpc_call` action
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 Reporter:  dd32          |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  XML-RPC       |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 The `xmlrpc_call` action currently passes the method name to the action,
 but fails to pass the arguments presented. That can make the action hard
 to use when the call passes specific content in the payload of the
 request.

 For example, when the `wp.getRevisions` XML-RPC call is made, it's
 impossible to tell what post is being accessed via the API for dynamic
 filtering without reaching into the internals of the global
 `$wp_xmlrpc_server` object.

 The attached PR simply adds the `$args` parameter to the action call along
 with the RPC server for consistency sake.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52524>
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