$ git clone -n https://src.fedoraproject.org/rpms/gtengine.git /var/lib/mock/f31-build-50558-27412/root/chroot_tmpdir/scmroot/gtengine
Cloning into '/var/lib/mock/f31-build-50558-27412/root/chroot_tmpdir/scmroot/gtengine'...
$ git reset --hard f7346e236f7c97b91b4f9f802280674957559988
HEAD is now at f7346e2 Release 3.21