$ git clone -n https://src.fedoraproject.org/rpms/rust-itoa.git /var/lib/mock/f45-build-42734-796/root/chroot_tmpdir/scmroot/rust-itoa
Cloning into '/var/lib/mock/f45-build-42734-796/root/chroot_tmpdir/scmroot/rust-itoa'...
$ git fetch origin 3dfaa08082999f9e2eb927b5dd57159605159fa9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-itoa
 * [new ref]         3dfaa08082999f9e2eb927b5dd57159605159fa9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3dfaa08 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild