Do not store display-only extra fields on reports.

[dracos]

Fixes https://github.com/mysociety/fixmystreet-commercial/issues/1456

[struan]

👍

[codecov]

Codecov Report

Merging #2560 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2560      +/-   ##
==========================================
- Coverage   82.37%   82.36%   -0.01%     
==========================================
  Files         210      210              
  Lines       13075    13079       +4     
  Branches     2417     2417              
==========================================
+ Hits        10770    10773       +3     
  Misses       1468     1468              
- Partials      837      838       +1

Impacted Files	Coverage Δ
perllib/FixMyStreet/DB/Result/Contact.pm	100% <100%> (ø)	⬆️
perllib/FixMyStreet/App/Controller/Report/New.pm	87.57% <100%> (ø)	⬆️
perllib/Utils.pm	97.97% <0%> (-1.02%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 63d6df8...ab3799a. Read the comment docs.