Set hideAnswerFeedback default value to string

[gikaragia]

There is an issue currently when creating new questions on a quiz. It is caused by setting the default value of hideAnswerFeedback to a boolean while it should be a string. To reproduce

Steps

1. Go to a lesson
2. Add a new question to a quiz
3. Do not modify the question settings
4. Click update

What I expected to happen

No error to occur

What happened instead

There is an error returned that complains that question does not pass validation.

Proposed Changes

• Set all default values to strings.

[github-actions]

WordPress Dependencies Report

The github-action-wordpress-dependencies-report action has detected some script changes between the commit a9a7bbf and trunk. Please review and confirm the following are correct before merging.

Script Handle	Added Dependencies	Removed Dependencies	Total Size	Size Diff
blocks/quiz/index.js			32.2 kB	+2 B ( +0.01% 🔼 )

This comment was automatically generated by the github-action-wordpress-dependencies-report action.

[codecov]

Codecov Report

Merging #6623 (a9a7bbf) into trunk (e18c666) will not change coverage.
The diff coverage is 58.49%.

@@            Coverage Diff            @@
##              trunk    #6623   +/-   ##
=========================================
  Coverage     48.29%   48.29%           
  Complexity    10011    10011           
=========================================
  Files           504      504           
  Lines         35642    35642           
  Branches        283      283           
=========================================
  Hits          17215    17215           
  Misses        18215    18215           
  Partials        212      212           

Impacted Files	Coverage Δ
includes/class-sensei.php	27.12% <0.00%> (ø)
...i/class-sensei-rest-api-question-helpers-trait.php	86.96% <ø> (ø)
includes/class-sensei-list-table.php	45.79% <33.33%> (ø)
.../class-sensei-rest-api-setup-wizard-controller.php	69.58% <61.11%> (ø)
...ncludes/internal/emails/class-email-list-table.php	80.89% <100.00%> (ø)

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[onubrooks]

There is an error returned that complains that question does not pass validation.

Where is this error showing? I can't reproduce this part.

UPDATE: seen it.