$ git clone -n https://src.fedoraproject.org/rpms/python-arrow.git /var/lib/mock/f40-build-2203185-51911/root/chroot_tmpdir/scmroot/python-arrow
Cloning into '/var/lib/mock/f40-build-2203185-51911/root/chroot_tmpdir/scmroot/python-arrow'...
$ git fetch origin eb42266cfc6f9093bdcb8b36a0a1227eed5206fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-arrow
 * [new ref]         eb42266cfc6f9093bdcb8b36a0a1227eed5206fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb42266 Remove unnecessary and deprecated python3-mock BR