• I don't have this new fix mistake option
• I'm using firefox 24.0
• This is just a report. I am not asking for an explanation as to why this happened. :)

I was doing a lesson and my translation of "Das kann man wohl sagen." was marked as incorrect.

Then I tried to select and copy my answer when the screen changed and once again I was able to edit the text inside the text box and check my answer.

I changed my answer and again I got it wrong :D but this time I didn't lose any hearts and I was able to continue.