$ git clone -n https://src.fedoraproject.org/rpms/rust-arrow-cast.git /var/lib/mock/f45-build-40139-768/root/chroot_tmpdir/scmroot/rust-arrow-cast
Cloning into '/var/lib/mock/f45-build-40139-768/root/chroot_tmpdir/scmroot/rust-arrow-cast'...
$ git fetch origin 64c9532000e39bbef5e199eb9d4dac95c4690477:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-arrow-cast
 * [new ref]         64c9532000e39bbef5e199eb9d4dac95c4690477 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64c9532 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild