$ git clone -n https://src.fedoraproject.org/rpms/nitrogen.git /var/lib/mock/f31-build-57798-28385/root/chroot_tmpdir/scmroot/nitrogen
Cloning into '/var/lib/mock/f31-build-57798-28385/root/chroot_tmpdir/scmroot/nitrogen'...
$ git reset --hard ee90b79b4052f2674cf699b5ce35901ffed83ca8
HEAD is now at ee90b79 Fix build error and appdata file