$ git clone -n https://src.fedoraproject.org/rpms/python-minidb.git /var/lib/mock/f45-build-31543-652/root/chroot_tmpdir/scmroot/python-minidb
Cloning into '/var/lib/mock/f45-build-31543-652/root/chroot_tmpdir/scmroot/python-minidb'...
$ git fetch origin 40944e21787d5326c355f91c7e9f1b5e733f503a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-minidb
 * [new ref]         40944e21787d5326c355f91c7e9f1b5e733f503a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40944e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild