$ git clone -n https://src.fedoraproject.org/rpms/fio.git /var/lib/mock/f45-build-8965-397/root/chroot_tmpdir/scmroot/fio
Cloning into '/var/lib/mock/f45-build-8965-397/root/chroot_tmpdir/scmroot/fio'...
$ git fetch origin 39fa4cbb53f0e12c5fb84e8c3b1cc9e771cd74f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fio
 * [new ref]         39fa4cbb53f0e12c5fb84e8c3b1cc9e771cd74f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39fa4cb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild