$ git clone -n https://src.fedoraproject.org/rpms/python-pillow.git /var/lib/mock/f41-build-814303-148949/root/chroot_tmpdir/scmroot/python-pillow
Cloning into '/var/lib/mock/f41-build-814303-148949/root/chroot_tmpdir/scmroot/python-pillow'...
$ git fetch origin 734e7e5d6170ddb9983b42782100f8d9df7d39bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pillow
 * [new ref]         734e7e5d6170ddb9983b42782100f8d9df7d39bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 734e7e5 Update to 10.4.0