Fix Response Status Code for Failing XML Emits

[allentiak]

In case that the generation of XML for responses failed, an OperationOutcome was already produced - but the status code was kept at 200. This was incorrect: in such a case that the server is unable to generate the XML output, the status code should be changed to 500.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.96%. Comparing base (8ff3e98) to head (bd5739f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2217      +/-   ##
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- Coverage   94.96%   94.96%   -0.01%     
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  Files         330      330              
  Lines       20252    20258       +6     
  Branches      483      482       -1     
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+ Hits        19232    19237       +5     
- Misses        538      539       +1     
  Partials      482      482              

see 2 files with indirect coverage changes

[alexanderkiel]

Your solution is functionally perfect. It's only the naming I have to criticise.

[alexanderkiel]

If you please could change the commit message into something like this:

Fix Response Status Code for Failing XML Emits

In case the generation of XML for responses failed, an OperationOutcome was
already produced, but the status code was kept at 200. However in such a
case that the server was unable to generate the XML output, the status
code has to be 500.

I would be perfect.

[allentiak]

Thanks for the suggestion.
I have changed the commit message accordingly.