[wp-trac] [WordPress Trac] #38777: Add method to merge one WP_Error into another

[WordPress Trac]

#38777: Add method to merge one WP_Error into another
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 Reporter:  rmccue                        |       Owner:  dlh
     Type:  feature request               |      Status:  assigned
 Priority:  normal                        |   Milestone:  5.5
Component:  General                       |     Version:
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:  rest-api
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Comment (by TimothyBlynJacobs):

 One of the questions here I think would be what to do with the error data.
 As far as I know, `WP_Error` only supports one data entry per-code.

 So what should happen if two `WP_Error` objects both have data for the
 same code?

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Ticket URL: <https://core.trac.wordpress.org/ticket/38777#comment:9>
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