fix: "An unexpected error occurred" for ORA response with corrupted attached file for Quince

[DmytroAlipov]

This is a backport from the master branch.

Steps to Reproduce:

1. Answer by the user to ORA -> attach corrupted file.
2. As staff go to Instructors tab -> Open responses and choose ora -> Click on View all responses

Actual Result:

An unexpected error occurred. Please click the button below to refresh the page:

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After my edits, it will be displayed in the preview card:

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Note:

I couldn’t figure out how to change the not-very-correct error message Unknown errors without major modifications.
Here you can select an error message.

[openedx-webhooks]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (c644da3) to head (60601e5).

Additional details and impacted files

@@                     Coverage Diff                      @@
##           open-release/quince.master      #323   +/-   ##
============================================================
  Coverage                      100.00%   100.00%           
============================================================
  Files                             110       110           
  Lines                            1079      1080    +1     
  Branches                          159       160    +1     
============================================================
+ Hits                             1079      1080    +1     

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[DmytroAlipov]

Hi @mphilbrick211
Is it possible to have someone review this MR so that this fix can be included in Quince 3?

[mphilbrick211]

Hi @mphilbrick211 Is it possible to have someone review this MR so that this fix can be included in Quince 3?

@arbrandes could you take a look? Thanks!