$ git clone -n https://src.fedoraproject.org/rpms/perl-Task-Kensho-Toolchain.git /var/lib/mock/f45-build-26495-617/root/chroot_tmpdir/scmroot/perl-Task-Kensho-Toolchain
Cloning into '/var/lib/mock/f45-build-26495-617/root/chroot_tmpdir/scmroot/perl-Task-Kensho-Toolchain'...
$ git fetch origin bbfb256fa1eec0244d0ee672fb98b8e3ec36eef9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Task-Kensho-Toolchain
 * [new ref]         bbfb256fa1eec0244d0ee672fb98b8e3ec36eef9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbfb256 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild