S3a PR 1 frontend sends public_submitter_name and public_submitter_email
on draft saves (PUT) and final submit (POST /submit), but the matching
SavePublicDraftRequest and SubmitPublicSubmissionRequest did not whitelist
these fields — Laravel's validated() silently stripped them, preventing
mid-form name/email updates from persisting.
Align both form requests with StartPublicDraftRequest to accept the same
submitter fields with identical rules (string, max:150 / email, max:255,
nullable). Controller copies present keys onto the submission model and
saves when dirty, matching standard Laravel update() semantics — missing
keys leave prior values untouched.
Closes the backend gap identified in PR 1 smoke test.
bert.hausmans
0cbdad70cd