fix: send the whole txt submission to the DraftParser

[rjsparks]

No description provided.

[jennifer-richards]

Any chance this helps #5731?

[codecov]

Codecov Report

Merging #5956 (9ee07dd) into main (09f3477) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #5956      +/-   ##
==========================================
- Coverage   88.67%   88.63%   -0.04%     
==========================================
  Files         288      288              
  Lines       40001    40003       +2     
==========================================
- Hits        35471    35458      -13     
- Misses       4530     4545      +15     

Impacted Files	Coverage Δ
ietf/doc/utils.py	87.15% <100.00%> (+0.01%)	⬆️
ietf/submit/forms.py	79.02% <100.00%> (+0.03%)	⬆️

... and 4 files with indirect coverage changes

[rjsparks]

Any chance this helps #5731?

No - that still fails:

main-celery-1   | django.db.utils.IntegrityError: null value in column "title" of relation "submit_submission" violates not-null constraint