Launch Rebase After Fetch settings.

I am using TortoiseGit 1.8.16.0 on Windows 7 and I have a question about the 'Launch Rebase After Fetch' option in the Pull dialog. The first time when you use this option you get several dialogs with question about what to do in specific situations. If I remember it correctly one of those questions is whether an 'automatic fast forward' should be done. There is a checkbox in that dialog to make TortoiseGit remember this setting for the next time that this occurs. I am unable to find the place where I can change this choice. Maybe this could be a new button in the rebase screen?