Steps to reproduce:
1.Create a shortanswer question with a big 100% graded answer without spaces, something like

abcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdklkabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdjkabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdjkjkabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdlkjabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdlkjabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdlkjabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdlkjabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsdlkjabcasdsadasdgksjdhgfkjasgdfkjasghfkajshgdfkajshgdfkjsd

(a real case was a regular expression from inherited question type, for example
[\s\t\n\r]int[\s\t\n\r]+summ[\s\t\n\r]([\s\t\n\r]int[\s\t\n\r](*[\s\t\n\r](Array|)|(|[\s\t\n\r]+Array)[\s\t\n\r][[\s\t\n\r]])[\s\t\n\r],[\s\t\n\r]int[\s\t\n\r](|[\s\t\n\r]+size)[\s\t\n\r])[\s\t\n\r];[\s\t\n\r]*
2. Login as student and make 1-2 attempts on this question
3. Login as teacher and go to question analysis report page.
You'll see that all answer displayed in the table cell as one string, making a very wide column that results in quite poorly usable table.