Problem extrafields.class.php?

Hello,

I am facing an issue with double quotation marks ("). In my “long text” attribute, whenever I add quotation marks, they are not preserved.
However, I need them to be retained.
I recently noticed that the issue could come from the file ‘extrafields.class.php’. I recently upgraded from V11 to V17, and in V11, I had no problem with double quotes.
Do you have a solution for this?

Thank you.