I want to make a pie chart showing all people who closed an issue and then it was reopened.
The problem is the fields I see contains current assignee not the one who closed it before as I can do in the filter "Changed from a to b BY x".
I want to get this "x" as a statistic field in the pie chart. I also don't want to create a custom field for the issues since it can be changed by anyone and it is already exist in the data (I can filter with it)