$ git clone -n https://src.fedoraproject.org/rpms/rust-litrs.git /var/lib/mock/f45-build-43009-799/root/chroot_tmpdir/scmroot/rust-litrs
Cloning into '/var/lib/mock/f45-build-43009-799/root/chroot_tmpdir/scmroot/rust-litrs'...
$ git fetch origin 87fed9a2aff70d9c98be2b46f48b97443ebe0e3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-litrs
 * [new ref]         87fed9a2aff70d9c98be2b46f48b97443ebe0e3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87fed9a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild