$ git clone -n https://src.fedoraproject.org/rpms/python-name-that-hash.git /var/lib/mock/f41-build-side-2-python-2706181-30419/root/chroot_tmpdir/scmroot/python-name-that-hash
Cloning into '/var/lib/mock/f41-build-side-2-python-2706181-30419/root/chroot_tmpdir/scmroot/python-name-that-hash'...
$ git fetch origin cbb63d716cb918ecbf69d8e0d9d20ac1d35055d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-name-that-hash
 * [new ref]         cbb63d716cb918ecbf69d8e0d9d20ac1d35055d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbb63d7 convert GPLv3+ license to SPDX