Single quotes are removed from the response when using the plain text format on Essay questions.
Steps to replicate:
- Create Quiz with two Essay questions (one HTML editor format, the other plain text)
- Attempt the Quiz as a student and add the below answer to both Essay questions
- Navigate to the Quiz responses and notice that the single quotes have been removed from the plain text submission
This issue is also apparent in older unsupported versions (tested in 3.3.9).