I'm using TortoiseGit, and I've just upgraded Git for Windows from an older version to 2.7.2. In the process, the location of ssh.exe has moved from C:\Program Files (x86)\Git\bin\ssh.exe to C:\Program Files\Git\usr\bin\ssh.exe.
This has broken my ability to fetch changes in TortoiseGit, since it can't find ssh.exe at the original location. Looking at Show Environment Variables in the settings (Image 1), I get a generated file with the GIT_SSH environment variable set to the old path (Image 2).
I have no idea where this is coming from. It doesn't appear to be part of Windows' environment variables.
Any idea where this is set so that I can change it?

